Unit IV: Hearing, Equilibrium, Olfaction & Gustation

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Quizzes Created: 8 | Total Attempts: 28,708

Questions: 16 | Attempts: 725 | Updated: Mar 17, 2023

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Unit IV: Hearing, Equilibrium, Olfaction & Gustation - Quiz

The terms Hearing, Equilibrium, Olfaction and Gustation may seem daunting upon first glance, but really they’re just a fancy way of saying hearing, balance, smell and taste. This quiz will deal with the human senses. Good luck!

Questions and Answers

1.

Identify B:

Explanation
The correct answer is "Incus, incus" because "Incus" is the correct term for the anatomical structure being referred to. The repetition of "incus" in the answer options suggests that it is the correct answer.

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2.

Identify C:

Explanation
The correct answer is "Cochlea, cochlea". The cochlea is a spiral-shaped, fluid-filled structure in the inner ear that is responsible for converting sound vibrations into electrical signals that can be interpreted by the brain. It is an essential part of the auditory system and plays a crucial role in hearing. The repetition of "Cochlea, cochlea" in the answer suggests that both the capitalized and lowercase versions of the word are correct and refer to the same structure.

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3.

Structure "A" is part of the inner ear.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
The structure "A" is not part of the inner ear.

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4.

Structure "D" represents the vestibulocochlear nerve.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The statement is true because the vestibulocochlear nerve is represented by structure "D". The vestibulocochlear nerve is responsible for transmitting auditory and vestibular information from the inner ear to the brain. It plays a crucial role in hearing and balance.

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5.

The middle ear has a role in bone conduction.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The middle ear plays a crucial role in bone conduction. When sound waves enter the ear, they vibrate the eardrum, which in turn transfers these vibrations to the three tiny bones in the middle ear called the ossicles. These ossicles amplify the vibrations and transmit them to the inner ear, where they are converted into electrical signals that the brain can interpret as sound. This process is essential for normal hearing, especially in situations where air conduction is compromised, such as when there is a blockage in the ear canal or damage to the outer or inner ear. Therefore, the statement is true.

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6.

Which of these is NOT part of the inner ear:
- A.
  
  Cochlea
- B.
  
  Semicircular Canals
- C.
  
  Vestibule
- D.
  
  Stapes
Correct Answer
D. Stapes

Explanation
The stapes is a bone in the middle ear, not the inner ear. The inner ear consists of the cochlea, semicircular canals, and vestibule. The cochlea is responsible for hearing, the semicircular canals are involved in balance and spatial orientation, and the vestibule helps with balance and detecting linear acceleration. The stapes, on the other hand, is one of the three tiny bones in the middle ear called the ossicles, which transmit sound vibrations from the eardrum to the inner ear.

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7.

The crista ampullaris is the receptor found in the semicircular canals.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The crista ampullaris is indeed the receptor found in the semicircular canals. The semicircular canals are part of the inner ear and are responsible for detecting rotational movements of the head. The crista ampullaris is a specialized structure within the semicircular canals that contains hair cells, which are sensory receptors. These hair cells detect the movement of fluid within the canals, allowing us to maintain our sense of balance and orientation. Therefore, the statement is true.

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8.

The sense responsible by the vestibule is:
- A.
  
  Hearing
- B.
  
  Equilibrium
- C.
  
  Vision
- D.
  
  Olfaction
Correct Answer
B. Equilibrium

Explanation
The vestibule is responsible for equilibrium, which is the sense of balance and spatial orientation. It is located in the inner ear and contains structures that detect changes in head position and movement. These structures send signals to the brain, allowing us to maintain our balance and coordinate our movements. Equilibrium is essential for activities such as walking, running, and even standing still.

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9.

The organ of corti is found in the vestibule region.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
The organ of Corti is not found in the vestibule region. The organ of Corti is actually located in the cochlea, which is a spiral-shaped structure in the inner ear. It is responsible for converting sound vibrations into electrical signals that can be interpreted by the brain. The vestibule region, on the other hand, is involved in balance and spatial orientation. Therefore, the statement that the organ of Corti is found in the vestibule region is false.

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10.

Thr organ/structure of smell is the:
- A.
  
  Olfactory Epithelium
- B.
  
  Olfactory Receptor Cell
- C.
  
  Olfactory Gland
- D.
  
  None of these
Correct Answer
A. Olfactory Epithelium

Explanation
The olfactory epithelium is the correct answer because it is the organ/structure responsible for the sense of smell. It is located in the upper part of the nasal cavity and contains specialized cells called olfactory receptor cells that detect and transmit smell signals to the brain. The olfactory gland, on the other hand, is responsible for producing mucus that helps in the detection of odors, but it is not the main organ/structure involved in the sense of smell.

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11.

Olfaction is the ability to taste.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Olfaction is not the ability to taste. Olfaction refers to the sense of smell, while taste refers to the sense of detecting flavors through the taste buds on the tongue. These two senses are separate and distinct from each other. Therefore, the statement that olfaction is the ability to taste is false.

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12.

Taste and smell both act as what type of receptors:
- A.
  
  Thermoreceptors
- B.
  
  Exteroreceptors
- C.
  
  Chemoreceptors
- D.
  
  None of these
Correct Answer
C. Chemoreceptors

Explanation
Taste and smell both act as chemoreceptors because they are sensory receptors that detect and respond to chemical stimuli. Taste receptors are located on the taste buds in the tongue and are responsible for detecting different tastes such as sweet, sour, salty, and bitter. Smell receptors, located in the nasal cavity, detect different odors in the form of chemical molecules. Both taste and smell receptors rely on chemical interactions to detect and transmit sensory information to the brain.

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13.

The bitter taste would be located where on the tongue?
- A.
  
  Anterior
- B.
  
  Lateral
- C.
  
  Dorsally
- D.
  
  Posterior
Correct Answer
D. Posterior

Explanation
The bitter taste would be located in the posterior part of the tongue. This is because taste buds that detect bitter flavors are primarily found at the back of the tongue.

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14.

The ability to smell is called gustation.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
The ability to smell is actually called olfaction, not gustation. Gustation refers specifically to the sense of taste. Therefore, the statement is false.

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15.

Identify A:

Correct Answer
Mitral Cell
Mitral cell
mitral cell

Explanation
The correct answer is "mitral cell." The term "mitral cell" refers to a type of neuron found in the olfactory bulb, which is responsible for processing and relaying information about smells. The fact that the answer is repeated in different cases (capitalized, lowercase, and sentence case) suggests that the answer is not case-sensitive and any of these variations would be considered correct.

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16.

Identify B:

Correct Answer
Olfactory Gland
Olfactory gland
olfactory gland

Explanation
The correct answer is "olfactory gland" because all three options provided are variations of the same term. The term "olfactory gland" refers to a gland that is responsible for producing and secreting the sense of smell.

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