Neotenic amphibian species retain certain larval traits in their adult forms, such as retaining gills and not undergoing metamorphosis.
Some examples of neotenic amphibians include axolotls and mud puppies. They are also typically smaller and have a more simplified body structure compared to their fully metamorphosed counterparts. Additionally, neotenic amphibians often exhibit delayed reproduction, with adults remaining sexually immature until later in life. They also tend to have a different habitat from other amphibians, often living in aquatic environments and not venturing on land.
Some other characteristics of neotenic amphibians include:
They often have an elongated body shape, with a tail that is longer than in fully metamorphosed amphibians.They may have a more limited range of movement, with some species being unable to move on land.They often have a more streamlined body shape, which is better adapted to an aquatic lifestyle.To know more about neotenic, click here,
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refer to the treatments listed below to answer the following question. you isolate an infectious substance capable of causing disease in plants, but you do not know whether the infectious agent is a bacterium, virus, viroid, or prion. you have four methods at your disposal to analyze the substance and determine the nature of the infectious agent. i. treat the substance with enzymes that destroy all nucleic acids and then determine whether the substance is still infectious. ii. filter the substance to remove all elements smaller than what can be easily seen under a light microscope. iii. culture the substance on nutritive medium, away from any plant cells. iv. treat the sample with proteases that digest all proteins and then determining whether the substance is still infectious. if you already know that the infectious agent was either bacterial or viral, which method(s) listed above would allow you to distinguish between these two possibilities?
If you already know that the infectious agent is either a bacterium or a virus, method III (culturing the substance on nutritive medium, away from any plant cells).
And method IV (treating the sample with proteases that digest all proteins and then determining whether the substance is still infectious virus) would allow you to distinguish between these two possibilities. Culturing the substance on nutritive medium would allow infectious agent you to grow bacterial cells, while viruses cannot grow on their own, they need to infect a host cell to replicate. Method IV would allow you to identify whether the infectious agent is composed of proteins or not, as proteases would digest proteins but not the nucleic acids of a virus.
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The line perpendicular to a barrier is called the
The unit used to measure frequency is called the _____.
Answer:
The line drawn at a right angle (perpendicular) to the barrier is called the normal.
Explanation:
In figure 1, water is shown being pumped out of the paramecium
by the contractile vacuole. Which best describes this process?
A This is active transport and does not require the use of
energy.
B
This is passive transport and does not require the use of
energy.
C
This is passive transport and requires the use of energy.
D
This is active transport and requires the use of energy.
The correct answer is D This is the active transport and required the use of energy.
What is the use of energy?Energy is used for a wide variety of purposes, including:Heating and cooling buildingsTransportation (e.g. cars, trains, planes)Generating electricityRunning industrial processes (e.g. in factories)Cooking and refrigerationLightingPowering machines and equipmentWater and sewage treatmentAgriculture and farmingCommunications and entertainment (e.g. computers, televisions)It is also used for research and development, such as in medicine, science and technology.To learn more about uses of energy refer:
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which of the following correctly lists the order of structures through which sound travels after entering the ear? auditory canal, eardrum, middle ear, cochlea auditory canal, middle ear, eardrum, cochlea review 4.4. eardrum, middle ear, cochlea, auditory canal cochlea, eardrum, middle ear, auditory canal eardrum, auditory canal, middle ear, cochlea
Answer:
1. Auditory canal
2. Eardrum
3. Middle ear
4. Cochlea
Answer: A. auditory canal, eardrum, ossicles, cochlea
Explanation:
Which of the following correctly lists the structures through which sound travels after entering the ear?
A. auditory canal, eardrum, ossicles, cochlea
B. ossicles, eardrum, cochlea, auditory canal
C. eardrum, auditory canal, ossicles, cochlea
D. cochlea, eardrum, ossicles, auditory canal
TRue or False: Estrogen not only makes eggs, it governs what are referred to as secondary sexual characteristics: soft skin and hair, breast development and fat distribution.
the differences between the 4 stages of sleep
Answer: In stage 1, you change from being awake to being asleep. You enter stage two of light sleep. You are in a deep sleep by stage three. The body is immobile during stage 4 REM, also referred to as paradoxical sleep, when dreams start to appear.
The four layers of the digestive tract wall, from innermost to outermost, are:a. mucosa, muscularis, serosa, and submucosab. serosa, muscularis, submucosa, and mucosac. mucosa, submucosa, muscularis, and serosad. submucosa, serosa, muscularis, and mucosa
The four layers of the digestive tract wall, from innermost to outermost, are: c. mucosa, submucosa, muscularis, and serosa
The digestive tract wall has four layers, starting with the innermost layer, the mucosa, which is the lining of the tract that comes into contact with the food, it is composed of epithelial cells and underlying connective tissue. The next layer is the submucosa, which is composed of connective tissue that supports the mucosa and contains blood vessels, lymphatic vessels, and nerves.
The muscularis is the next layer, it is composed of smooth muscle and serves to move food through the digestive tract by peristaltic movement. The outermost layer is the serosa, which is a thin, smooth layer of connective tissue that surrounds the digestive tract, separating it from other organs and providing structural support.
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Which answer below describes the energy transformation shown in this diagram?
The energy transformation shown in this diagram chemical energy to thermal energy. The correct option is C.
What is thermal energy?The energy present in a system that determines its temperature is referred to as thermal energy.
Thermal energy flows as heat. Thermodynamics is a whole field of physics that studies how heat is transmitted across various systems and how work is done in the process.
Chemical energy is the energy that is released when chemical substances engage in a chemical reaction and change into other substances.
Batteries, food, and gas are a few examples of chemical energy storage mediums.
Thus, the correct option is C.
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Your question seems incomplete, the missing options are:
radiant energy to thermal energy
thermal energy to nuclear energy
chemical energy to thermal energy
List three functions of ovaries
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Answer:
Three functions of ovaries are listed below:
1. Oocytes (the female gamete) need to be protected and given refuge by the ovaries in order to be fertilised.
2. To create the hormones relaxin, inhibin, oestrogen, and progesterone.
3. Ovulation, the process by which each menstrual cycle results in the release of one egg.
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Explanation:
Which of the following is part of the adaptive immune response? Select one: a. Phagocytosis b. Inflammation c. Production of antibodies d. Synthesis of
Answer:
C. The production of antibodies.
Explanation:
Hope it helps:)
In adaptive immune response, production of antibodies against the antigens in the body, hence option C is correct.
What is adaptive immune system?The immune system's adaptive immune system, sometimes referred to as the acquired immune system, is made up of specialized, systemic cells and processes that either destroy infections or stop their growth.
One of the two basic types of immunity that can be seen in vertebrates is the acquired immune system.
They are produced by the immune system in an effort to combat pathogens and foreign objects. Antibodies can adhere to potentially dangerous substances and identify pathogens swiftly. This destroys the "intruders" and entices additional immune system cells to lend a hand.
Therefore, B lymphocytes produces antibodies, hence option C is correct.
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which of the following is the correct order for flower parts from the outside to the inside of a flower
Sepals Petals Stamen Carpel is the proper order for flower parts from the outside to the inside of a flower.
What are the four main purposes of a plant's four components?
The majority of a plant's fundamental parts include roots, stalks, leaves, flowers, fruits, and seeds. The roots, which also act as anchors and absorbers of water and nutrients, provide support for the plant. They can also store the carbohydrates and glucose the plant needs to perform other functions.
Do flowers have five fundamental parts?
The four main parts of a flower are the petals, sepals, stamens, and carpels (also referred to as a pistil). All four of these crucial elements must be present for a bloom to be considered complete. If any of these are missing, a flower is incomplete.
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a double helix looks like a twisted ladder which part if the twisted ladder are analogous to the hydroge bonds and sugar phosphate backbone of a double helix of dna
Hydrogen bond of DNA are analogous to the rungs or the twisted ladder and sugar phosphate backbone of the double helix analogous to the side of the twisted ladder.
What is DNA?
Deoxyribonucleic acid is a polymer made of two polynucleotide chains that wrap around one another in a double helix (DNA). All known living things have genetic material, including many viruses, which is crucial to their development, function, and reproduction. Nucleic acids include things like DNA and ribonucleic acid (RNA). Nucleic acids are one of the four primary types of macromolecules necessary for all known forms of life, along with proteins, lipids, and complex carbohydrates (polysaccharides).
All prokaryotic and eukaryotic cells as well as many viruses include deoxyribonucleic acid, also known as DNA. DNA is an organic molecule with a complicated molecular structure. DNA encodes genetic information that is used to transmit inherited features.
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Correct form of question:
A double helix looks like a twisted ladder. Which parts twisted ladder are analogous to the hydrogen bonds and sugar - phosphate backbones of a double helix of DNA?
an aerobic gram-negative coccobacillus was isolated from a nasopharyngeal swab 48 hours after culture from a 6-month-old with the following culture characteristics on bordet-gengou agar:
The bacterium is most likely Bordetella pertussis, which is the causative agent of whooping cough. B. pertussis is a fastidious, aerobic, Gram-negative coccobacillus.
What is aerobic?
Aerobic exercise is any type of physical activity that increases the heart rate and uses the large muscles in the body for a sustained period of time. It is typically done in a rhythmic, repetitive fashion and usually involves a combination of aerobic activities such as running, cycling, swimming, jumping rope, or using an elliptical machine. Aerobic exercise increases the efficiency of the body's cardiovascular system, meaning it is able to use oxygen more effectively. This leads to a number of health benefits, such as increased stamina, improved mental clarity, and increased strength. In addition to its physical benefits, aerobic exercise can also help reduce stress, improve sleep, and boost mood.
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with humans making up such a small percentage of life on earth, which of the statements represents the rationale behind spending a disproportionate amount of scientific research studying humans?
All of the above are reasons for spending a disproportionate amount of scientific research studying humans is the correct statement representing the rationale behind spending a dispropotionate amount.
Triangular Split. The National Science Foundation estimates that universities receive 29% of government R&D funding, businesses receive 29%, and federal agency researchers receive a further 29%. Laboratories run by private contractors but supported by the federal government receive about 10%.
Human subjects are used in biomedical research, which raises a number of ethical issues concerning concepts like bodily integrity, autonomy, and privacy.
In the end, studies involving human beings are what advance human health and wellbeing. Any claims regarding the physiology of health, the causes of disease, the efficacy of therapy, learning, or behavior must be supported by studies that are carefully designed and conducted on human subjects.
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Complete question : With humans making up such a small percentage of life on Earth, which of the following represents the rationale behind spending a disproportionate amount of scientific research studying humans?
1. Our role in the ecosystem needs to be understood in order to plan for our future.
2. All of the above are reasons for spending a disproportionate amount of scientific research studying humans.
3. Humans are interested in learning how their own bodies function.
4. The more that is discovered about humans, the more likely it is that disease can be combatted.
5. Humans are curious about their origins.
the black widow and brown recluse spiders are important because they are the two harmful spiders in north texas.
Black widow spiders consume plant-harming insects like locusts and caterpillars as well as nuisance insects like flies and mosquitoes to help keep the environment in balance. Black widows can attack people if they feel threatened, despite the fact that they have many positive traits.
Why are black widow spiders important?The red hourglass-shaped marking on the underside of the abdomens of black widow spiders is well recognized and serves as a warning to any possible predators. Following observations of females consuming males after mating, black widows were given their ominous name. But it's uncommon, and it typically takes place in captivity when men are unable to flee.Although black widows come in five different species, the southern and northern species are the most prevalent. These species can be differentiated by a row of red spots rather than an hourglass.Widows are medium-sized spiders that are about half an inch long, glossy, plump, and black in color. Males typically have a lifespan of one to two months, compared to females' three-year maximum.To Learn more About Black widow spiders refer to:
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Which of the following hormones does NOT cause fatty acid mobilization in adipose cells?
Insulin
Glucagon
Epinephrine (adrenaline)
ACTH (adrenocorticotropic hormone)
Insulin is one of the hormones that stops adipose cells from mobilizing fatty acids.
What do you mean by mobilization?
Glycerol and free fatty acids are then released into the blood. The circulating hormones insulin, glucagon, norepinephrine, and epinephrine control the activity of hormone sensitive lipase.
This mobilizing what kind?
The process by which a government prepares its forces for battle is known as mobilization. It is also mobilization when you gather your family to surprise your sister with a party. Getting a group of people ready to act at a moment's notice is the aim of mobilization.
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Which of the following acts as a transport portal for granules to move from the organelle zone to the membrane zone?a. Open canalicular systemb. Dense tubular systemc. Membrane glycoproteinsd. Endoplasmic reticulum
Granules can travel from the cellular zone to the membrane region through the open canalicular system.
The ER serves two main purposes: Transport: Much like an intracellular highway, the ER allows molecules, such as protein, to move from one location to another. Similar to detached ribosomes, ER-attached ribosomes synthesise proteins. Cells use the endoplasmic reticulum for a number of purposes. One of their main responsibilities is acting as a transportation route. Small tubes called microtubules are constructed from the proteins tubulin. These tubules are present in the cilia and flagella, which are components of cell motility.Granules can travel from the cellular zone to the membrane region through the open canalicular system. Endoplasmic reticulum (E.R.) - Pathways that transport proteins and other substances. Tubular structures that are hollow and move about the cytoplasm.
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when performing quantitative cultures from bronchoalveolar lavage specimens, which of the following colony-forming units per milliliter indicates a true bacterial pneumonia?
Answer:
>103 colony forming units/mL
Explanation:
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rehearsal does which of the following? multiple select question. increases the amount of information that can be transferred to sensory memory aids in the transfer of information from short-term to long-term memory lengthens the time information can be held in short-term memory increases the precision of information from sensory memory
Even while rehearsal must play a significant role in any comprehensive theory of memory, little is known about how it works. Rehearsal supposedly serves the twin aim of keeping things in the short term, according to Waugh and Norman's 1965 theory.
Which mechanism does the short-term memory information transfer from sensory memory?The cognitive process of selecting focusing on one part of the world while disregarding others, attention transfers information from sensory memory into short-term memory by filtering out all but the stimuli that are of interest at any given moment.
Which practise technique is most effective for enhancing long-term memory and learning?Therefore, elaborate rehearsal enhances long-term memory retention since it involves a higher level of processing.
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the blank of the autonomic division of the peripheral nervous system directs the body to store energy for use in emergencies. multiple choice sympathetic division parasympathetic division dendritic division somatic division
The sympathetic division of the autonomic nervous system directs the body to store energy for use in emergencies.
What is the autonomic nervous system?The body's internal organs and glands are managed by the autonomic nervous system (ANS), which is a branch of the peripheral nervous system. The maintenance of homeostasis depends on the regulation of processes like breathing, digestion, blood pressure, heart rate, and blood pressure. Two branches of the ANS are present:
the sympathetic nervous system the parasympathetic nervous systemThe sympathetic division, which is in charge of the "fight or flight" response, primes the body for emergency situations by raising the heart rate and blood pressure and diverting blood flow from non-essential processes.
Contrarily, the parasympathetic division controls the "rest and digest" response and relaxes the body by lowering blood pressure and heart rate and diverting blood flow to the digestive system.
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What is the function of fibroblast growth factor 3?
Answer: The function of fibroblast growth factor 3 is to inhibits growth-plate chondrocyte proliferation and limits bone elongation.
Explanation: The FGFR3 gene provides instructions for making a protein called fibroblast growth factor receptor 3. These proteins play a role in several important cellular processes, including regulation of cell growth and division (proliferation), formation of blood vessels (angiogenesis), determination of cell typewound healing, and embryo development.
This protein regulates bone growth by limiting the formation of bone from cartilage ( by a process called ossification ) it plays a important part in long bones for eg femur bone .
In a study of several thousand women, it was found that rates of bulimia nervosa was more prevalent among_____women when compared to non- Hispanic whites. O Eastern and Western European O Hispanic and African American O Native American and Pacific Islander O Hispanic and Asian-American
In a study of thousands of women, it was discovered that Hispanic and African American women had higher rates of bulimia nervosa than non-Hispanic whites.
It is an eating disorder characterized by abnormal eating patterns, such as episodes of massive food consumption followed by purging or compensatory behaviors.
This disorder is more common in Western women between the ages of 18 and 25, regardless of sociocultural background.
As a result, we can conclude that bulimia nervosa is more common in Western women due to chronic dietary restrictions, according to research.
Bulimia nervosa, also known as bulimia, is a serious and potentially fatal eating disorder. Bulimics may secretly binge (eat large amounts of food without control) and then purge, attempting to get rid of the extra calories in an unhealthy way.
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Which three of the following characteristics distinguish bacteria from archaea?
70S ribosomes present in cytoplasm
motility structures are present
capsules and slime layers found on most cells
chromosome is double-stranded DNA
inclusions present in the cytoplasm
type of lipid molecules found in plasma membranes
presence of peptidoglycan in cell walls
The three of the following characteristics distinguish bacteria from archaea are, types of lipid molecules present in the plasma membrane, presence of peptidoglycan in the cell walls, capsule and slime layers found in most of the cells.
archaea and bacteria both are unicellular, single cell, they are said to be the first living.
in archaea, the cell wall is made of protein and not peptidoglycan.
as archaea survive in high temperature, there membrane composition is different from the bacteria in many ways.
Both are considered to be prokaryotic, but archaea is considered much close to eukaryotic.
Some common characteristics between them is, they have 70 s ribosome, flagella, reproduction, plasmid and etc.
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High blood levels of this type of cholesterol appear to reduce the risk of atherosclerosis, or cholesterol-clogged arteries.
A. LDL B. HDL C. triglycerides D. ADL
High blood levels of HDL appear to reduce the risk of atherosclerosis, or cholesterol-clogged arteries.
What is HDL?
HDL stands for High-Density Lipoprotein. It is a type of lipoprotein which carries cholesterol and other lipids from the body's tissues to the liver. It is often referred to as "good" cholesterol because it helps to remove excess cholesterol from the body and reduce the risk of heart disease. High levels of HDL are beneficial to health and can help protect against heart attack and stroke.
Therefore, High blood levels of HDL appear to reduce the risk of atherosclerosis, or cholesterol-clogged arteries.
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eating suppresses ghrelin secretion. however, this suppression does not appear to be caused by the presence of food in the stomach or duodenum, nor by stomach distension. given this, which of the following physiological conditions is likely to suppress ghrelin secretion following a meal? A) Increased levels of circulating glucagon
B) Decreased osmolarity in the ileum
C) Increased levels of circulating insulin
D) Decreased levels of circulating insulin
Increased levels of circulating glucagon.
What occurs when ghrelin levels drop?
You become more ravenous as ghrelin levels rise.The more satisfied you feel as well as the simpler it is to consume less calories, the lower you levels are.Therefore, reducing your ghrelin can be helpful if you wish to lose weight.
What results in a drop in ghrelin?Your ghrelin levels typically fluctuate depending on how much you consume.When you are hydrated, ghrelin may drop, and when you are dehydrated, it may rise.Your diet's food choices have an impact on ghrelin.Consuming foods strong in protein or good carbs, as opposed to foods heavy in fat, lowers ghrelin levels more.
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the derivation below does not speci cally depend on quasithermal equilibrium, however, if quasithermal equilibrium does exit at the interface the results will apply independently of the detailed microscopic description.
The derivation being referred to in the statement does not specifically depend on the assumption of quasi thermal equilibrium at the interface, meaning that it can be applied to any system.
Regardless of whether or not quasi thermal equilibrium is present. However, if quasi thermal equilibrium does exist at the interface, then the results of the derivation will apply independently of the detailed microscopic description of the system. In other words, if quasi thermal equilibrium is present, the outcome will be the same regardless of the specific interactions and processes occurring at the microscopic level. This means that the results of the derivation will be general and applicable to a wide range of systems, making it a useful tool for understanding various phenomena.
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if you were to design a different experiment testing rates of diffusion, identify experimental procedures.
Diffusion is a crucial mechanism that accounts for the passive transport of substances into and out of cells as well as the traffic of specific molecules inside the cell.
What is Diffusion ?A concentration (or energy) differential creates the driving force behind diffusion, which operates as follows: molecules always flow from higher concentration (or higher energy) regions to lower concentration regions (barring a barrier) (or lower energy).Using two plexi-glass chambers divided by a semi-permeable membrane—one to simulate the form of a cell and the other, its external environment—this experiment will enable you to examine the effects of solute concentration on diffusion rate.In order to assess the rate at which salts diffuse into the cell chamber, several sodium chloride solutions will be positioned in the environment chamber during the tests.To Learn more About Diffusion refer to:
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1. SELECT ONE NATURAL HAZARD IN THE PICTURE AND SUGGEST WAYS ON HOW PEOPLE MUST BE PREPARED TO FACE THE HAZARD IN TERMS OF THE DIFFERENT PERSPECTIVES GIVEN BELOW
CHOSEN HAZARD: STORM SURGE
Pa help po pls... I really need help po. I'll mark brainliest po who answered po.
Example: Earthquake
The natural hazard chosen is earthquake and the ways in which people can prepare for it is by making an emergency plan and also providing safety measures to avoid injuries due to the fall and collapse of structures.
What is an Emergency?This is referred to as an unexpected and serious situation such as an accident or a natural disaster such as earthquake which must be dealt with quickly in other to prevent loss of lives and properties.
The ways in which people can prepare for it is by making an emergency plan so as to ensure that no one is stranded due to the debris or flood and also providing safety measures to avoid injuries caused by the falling and collapse of substances in the affected area.
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describe the stages of each type of cell reproduction process from a normal patient whose body cells can repair themselves and normal cell division during the reproductive development of the unborn baby.
The stages of each type of cell reproduction process in a normal patient, whose body cells can repair themselves, and normal cell division in a baby are called mitosis, as this is a type of cell division that is equational in nature.
What is the significance of the equational division in cell repair?It is very important in the development of the new-born child and in cell repair because mitosis is the process by which the cell divides to give rise to the exact type of cell as the parent, preserving the cells' similarity. it has five stages such as the prophase, metaphase, anaphase, telophase and cytokinesis that help in the production of similar cells.
Hence, the stages of each type of cell reproduction process in a normal patient, whose body cells can repair themselves, and normal cell division in a baby are called mitosis, as this is a type of cell division that is equational in nature.
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Current Findings: Symptoms appeared suddenly. Facial paralysis on the left half of the face, including the forehead. The patient has tenderness posterior to his left ear. Eyes are moist. Which nerve is responsible for the patients loss of taste?
A. Chorda tympani
B. Greater petrosal nerve
C. Glossopharyngeal nerve
D. Vagus nerve
C. Inflammation and
The nerve responsible for loss of taste in the scenario described is the Chorda tympani, which is a branch of the facial nerve (cranial nerve VII). It passes through the middle ear and sends taste fibers to the anterior two-thirds of the tongue.
What is Chorda tympani?The chorda tympani is a branch of the facial nerve (CN-VII) that arises from the intermediate nerve in the middle ear. It runs through the petrous temporal bone and exits the skull through the middle ear, it then enters the infratemporal fossa and innervates the submandibular and sublingual glands, and then terminates by joining the lingual nerve. It carries taste sensation from the anterior 2/3 of the tongue and also parasympathetic fibers to the submandibular and sublingual glands.
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