Question 1

Gross & microscopic anatomy of the eye. 
-In this illustration of the ear, what structure does number 1 indicate?

Accepted Answer

A)   Vestibule
B)   Cochlea
C)   Stapes
D)   Incus
E)   Tympanic membraneF) B) and C)
G) All of the above

Question 2

A flattened lens

Accepted Answer

A)   is necessary for near vision.
B)   is necessary for distant vision.
C)   is necessary for both near and far vision.
D)   functions only with color vision.
E)   reflects light rays.F) C) and D)
G) B) and E)

Question 3

The vascular tunic of the eye has three distinct regions. From anterior to posterior what are they?
A: Ciliary body
B: Choroid
C: Iris

Accepted Answer

A)   a, b, c
B)   b, a, c
C)   c, a, b
D)   c, b, a
E)   b, c, aF) None of the above
G) A) and C)

Question 4

Which of the following is not one of the three criteria used to describe receptors?

Accepted Answer

A)   Stimulus strength (intensity of stimulus) 
B)   Stimulus origin (location of stimulus) 
C)   Receptor distribution (body location) 
D)   Modality of stimulus (stimulating agent) E) B) and D)
F) None of the above

Question 5

Contrast the visual deficits that would result from someone having a mutation in the gene for rhodopsin versus a mutation in one of the genes for a photopsin.

Accepted Answer

A mutation to rhodopsin gene would influ...

Question 6

When light strikes a photoreceptor it

Accepted Answer

A)   deporlarizes and releases more neurotransmitter.
B)   depolarizes and releases less neurotransmitter.
C)   hyperpolarizes and releases more neurotransmitter.
D)   hyperpolarizes and releases less neurotransmitter.E) None of the above
F) B) and C)

Question 7

The most numerous type of receptor in the body is the

Accepted Answer

A)   chemoreceptor.
B)   tactile receptor.
C)   thermoreceptor.
D)   nociceptor.
E)   photoreceptor.F) A) and D)
G) A) and C)

Question 8

A reduction in sensitivity to a continually applied stimulus is called

Accepted Answer

A)   sensation.
B)   tonicity.
C)   conscious awareness.
D)   adaptation.
E)   transduction.F) B) and D)
G) A) and E)

Question 9

Gustatory receptors are classified as mechanoreceptors because food molecules must be dissolved in saliva before they can be tasted.

Accepted Answer

A) True 
 B)False

Question 10

The least numerous but the largest of the papillae are arranged as a V-shape on the posterior dorsal surface of the tongue. They contain the majority of taste buds and are called ________ papillae.

Accepted Answer

A)   papiform
B)   filiform
C)   fungiform
D)   vallate
E)   foliateF) B) and D)
G) All of the above

Question 11

Where is the greatest concentration of cones located?

Accepted Answer

A)   In the optic disc
B)   In the ora serrata
C)   In the fovea centralis
D)   In the posterior retina
E)   In the optic nerveF) B) and D)
G) A) and B)

Question 12

Which term best describes receptors that detect body and limb movements, skeletal muscle contraction and stretch, and joint capsule structure?

Accepted Answer

A)   Interoceptors
B)   Exteroceptors
C)   Proprioceptors
D)   Nociceptors
E)   ThermoreceptorsF) A) and E)
G) B) and E)

Question 13

Our body responds to the osmolarity of our blood plasma, but we are not consciously aware of it. Because we respond but are not aware, this is an example of a sensation, but not of a stimulus.

Accepted Answer

A) True 
 B)False

Question 14

Which papillae, distributed on the anterior two-thirds of the tongue surface, lack taste buds?

Accepted Answer

A)   Papiform
B)   Filiform
C)   Fungiform
D)   Vallate
E)   FoliateF) B) and E)
G) B) and C)

Question 15

Compare and contrast rods and cones in terms of their number, location, pigment content, and abilities to assist in sharp vision, color vision, and night vision.

Accepted Answer

Rods contain rhodopsin and are...

Question 16

Phasic receptors for light touch and texture are

Accepted Answer

A)   Krause bulbs.
B)   lamellated corpuscles.
C)   arrector pili corpuscles.
D)   Ruffini corpuscles.
E)   tactile corpuscles.F) A) and D)
G) C) and E)

Question 17

When we initiate a rapid rotation of our head, it results in bending of cilia on hair cells

Accepted Answer

A)   in the utricle of our cochleas.
B)   in the maculae of our semicircular ducts.
C)   in the ampullae of our semicircular ducts.
D)   in the maculae of our vestibules.
E)   in the ampullae of our vestibules.F) D) and E)
G) A) and E)

Question 18

Changes in the external and internal environment are ________ that are detected by the sensory system.

Accepted Answer

A)   sensations
B)   receptors
C)   stimuli
D)   adaptations
E)   transducersF) A) and B)
G) A) and C)

Question 19

When you travel on a moving walkway or an elevator, the linear acceleration of your body is sensed by the

Accepted Answer

A)   cochlea.
B)   semicircular canals.
C)   utricle and saccule.
D)   ossicles.E) A) and D)
F) None of the above

Question 20

The lens of the eye flattens when

Accepted Answer

A)   ciliary muscles contract.
B)   ciliary muscles relax.
C)   extrinsic eye muscles contract.
D)   extrinsic eye muscles relax.
E)   intrinsic muscles of the iris contract.F) C) and D)
G) D) and E)

Exam 16: Nervous System: Senses

A reduction in sensitivity to a continually applied stimulus is called

Correct AnswerverifiedShow Answer

When you travel on a moving walkway or an elevator, the linear acceleration of your body is sensed by the

Correct AnswerverifiedShow Answer

Contrast the visual deficits that would result from someone having a mutation in the gene for rhodopsin versus a mutation in one of the genes for a photopsin.

Correct AnswerverifiedA mutation to rhodopsin gene would influ...View AnswerShow Answer

Gustatory receptors are classified as mechanoreceptors because food molecules must be dissolved in saliva before they can be tasted.

Correct AnswerverifiedShow Answer

When we initiate a rapid rotation of our head, it results in bending of cilia on hair cells

Correct AnswerverifiedShow Answer

Changes in the external and internal environment are ________ that are detected by the sensory system.

Correct AnswerverifiedShow Answer

Which papillae, distributed on the anterior two-thirds of the tongue surface, lack taste buds?

Correct AnswerverifiedShow Answer

When light strikes a photoreceptor it

Correct AnswerverifiedShow Answer

Where is the greatest concentration of cones located?

Correct AnswerverifiedShow Answer

The lens of the eye flattens when

Correct AnswerverifiedShow Answer

Phasic receptors for light touch and texture are

Correct AnswerverifiedShow Answer

The least numerous but the largest of the papillae are arranged as a V-shape on the posterior dorsal surface of the tongue. They contain the majority of taste buds and are called ________ papillae.

Correct AnswerverifiedShow Answer

Gross & microscopic anatomy of the eye. -In this illustration of the ear, what structure does number 1 indicate?

Correct AnswerverifiedShow Answer

A flattened lens

Correct AnswerverifiedShow Answer

The most numerous type of receptor in the body is the

Correct AnswerverifiedShow Answer

Our body responds to the osmolarity of our blood plasma, but we are not consciously aware of it. Because we respond but are not aware, this is an example of a sensation, but not of a stimulus.

Correct AnswerverifiedShow Answer

Which of the following is not one of the three criteria used to describe receptors?

Correct AnswerverifiedShow Answer

The vascular tunic of the eye has three distinct regions. From anterior to posterior what are they? A: Ciliary body B: Choroid C: Iris

Correct AnswerverifiedShow Answer

Compare and contrast rods and cones in terms of their number, location, pigment content, and abilities to assist in sharp vision, color vision, and night vision.

Correct AnswerverifiedRods contain rhodopsin and are...View AnswerShow Answer

Which term best describes receptors that detect body and limb movements, skeletal muscle contraction and stretch, and joint capsule structure?

Correct AnswerverifiedShow Answer

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A mutation to rhodopsin gene would influ...
View Answer

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Rods contain rhodopsin and are...
View Answer

Correct Answer
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