Question 1

Which of the following definitions best describes the timbre of sounds?

Accepted Answer

A)  loudness 
B)  amplitude 
C)  wave frequency 
D)  resonance quality 
E)  pitch 
A)  loudness 
B)  amplitude 
C)  wave frequency 
D)  resonance quality 
E)  pitch

Question 2

To focus on objects closer than 20 feet,

Accepted Answer

A)  the lens must become flatter. 
B)  the cornea must move inward. 
C)  the ciliary muscles must contract. 
D)  the suspensory ligaments increase tension on the lens. 
E)  the retina must bend. 
A)  the lens must become flatter. 
B)  the cornea must move inward. 
C)  the ciliary muscles must contract. 
D)  the suspensory ligaments increase tension on the lens. 
E)  the retina must bend.

Question 3

As an object moves closer to the eye,

Accepted Answer

A)  the lens flattens. 
B)  the eyes rotate medially. 
C)  the ciliary muscles relax. 
D)  the diameter of the pupil increases. 
E)  the eye blinks. 
A)  the lens flattens. 
B)  the eyes rotate medially. 
C)  the ciliary muscles relax. 
D)  the diameter of the pupil increases. 
E)  the eye blinks.

Question 4

Which of the following is NOT an intrinsic eye muscle?

Accepted Answer

A)  ciliary muscles 
B)  inferior oblique muscle 
C)  sphincter pupillae muscle 
D)  dilator pupillae muscle 
A)  ciliary muscles 
B)  inferior oblique muscle 
C)  sphincter pupillae muscle 
D)  dilator pupillae muscle

Question 5

Arrange the following parts of the neuronal pathway for hearing in the correct sequence. (1) inferior colliculus
(2) medial geniculate nucleus
(3) superior olivary nucleus
(4) auditory cortex
(5) cochlear nucleus

Accepted Answer

A)  4, 5, 3, 1, 2 
B)  5, 3, 1, 2, 4 
C)  1, 2, 3, 5, 4 
D)  5, 2, 1, 3, 4 
E)  5, 4, 1, 3, 2 
A)  4, 5, 3, 1, 2 
B)  5, 3, 1, 2, 4 
C)  1, 2, 3, 5, 4 
D)  5, 2, 1, 3, 4 
E)  5, 4, 1, 3, 2

Question 6

The membranous labyrinth is located within the bony labyrinth of the inner ear.

Accepted Answer

A) True 
 B)False

Question 7

Match the structure with the appropriate description.
-iris

Accepted Answer

A) photoreceptor cells that function in black and white vision 
B) photoreceptor cells that function in color vision 
C) the opening in the iris 
D) the innermost tunic of the eye 
E) a pigmented contractile structure 
A) photoreceptor cells that function in black and white vision 
B) photoreceptor cells that function in color vision 
C) the opening in the iris 
D) the innermost tunic of the eye 
E) a pigmented contractile structure

Question 8

The conscious perception of smell is a function of the:

Accepted Answer

A)  olfactory cortex in the frontal lobe 
B)  secondary olfactory area in the frontal lobe 
C)  olfactory cortex in the temporal lobe 
D)  secondary olfactory area in the temporal lobe 
A)  olfactory cortex in the frontal lobe 
B)  secondary olfactory area in the frontal lobe 
C)  olfactory cortex in the temporal lobe 
D)  secondary olfactory area in the temporal lobe

Question 9

To which colors are the three different kinds of cones sensitive?

Accepted Answer

A)  blue, red, and yellow 
B)  red, blue, and green 
C)  red, violet, and yellow 
D)  violet, green, and blue 
E)  orange, indigo, and violet 
A)  blue, red, and yellow 
B)  red, blue, and green 
C)  red, violet, and yellow 
D)  violet, green, and blue 
E)  orange, indigo, and violet

Question 10

Sensory structures that detect taste are

Accepted Answer

A)  palates. 
B)  papillae. 
C)  taste buds. 
D)  ciliary membranes. 
E)  thermoreceptors. 
A)  palates. 
B)  papillae. 
C)  taste buds. 
D)  ciliary membranes. 
E)  thermoreceptors.

Question 11

Match the description with the most appropriate structure.
-perilymph

Accepted Answer

A) structures that produce earwax 
B) fluid in the membranous labyrinth 
C) fluid between the membranous and bony labyrinth 
D) ossicles connect this structure to eardrum 
E) connects the middle ear to the pharynx 
A) structures that produce earwax 
B) fluid in the membranous labyrinth 
C) fluid between the membranous and bony labyrinth 
D) ossicles connect this structure to eardrum 
E) connects the middle ear to the pharynx

Question 12

Night blindness could be caused by

Accepted Answer

A)  a lack of cones. 
B)  a lack of iodopsin. 
C)  a lack of rhodopsin. 
D)  too much vitamin A in the diet. 
E)  a lack of vitamin C in the diet. 
A)  a lack of cones. 
B)  a lack of iodopsin. 
C)  a lack of rhodopsin. 
D)  too much vitamin A in the diet. 
E)  a lack of vitamin C in the diet.

Question 13

Identify the type of hair cells of the spiral organ that are responsible for hearing.

Accepted Answer

A)  inner hair cells 
B)  outer hair cells 
C)  inner and outer hair cells 
A)  inner hair cells 
B)  outer hair cells 
C)  inner and outer hair cells

Question 14

Which type of taste has the lowest threshold?

Accepted Answer

A)  sweet 
B)  bitter 
C)  salty 
D)  sour 
E)  umami 
A)  sweet 
B)  bitter 
C)  salty 
D)  sour 
E)  umami

Question 15

Match the structure with the appropriate description.
-membranous labyrinth

Accepted Answer

A) organ of hearing 
B) passageway from the outside to the eardrum 
C) interconnecting tunnels in the temporal bone 
D) tiny bones in the middle ear 
E) connecting chambers of inner ear filled with endolymph 
A) organ of hearing 
B) passageway from the outside to the eardrum 
C) interconnecting tunnels in the temporal bone 
D) tiny bones in the middle ear 
E) connecting chambers of inner ear filled with endolymph

Question 16

The contractile structure that surrounds the pupil is the

Accepted Answer

A)  iris. 
B)  ciliary ring. 
C)  sclera. 
D)  ciliary muscle. 
E)  retina. 
A)  iris. 
B)  ciliary ring. 
C)  sclera. 
D)  ciliary muscle. 
E)  retina.

Question 17

The blink reflex is designed to

Accepted Answer

A)  maintain balance. 
B)  regulate pupil size. 
C)  provide clearer vision. 
D)  keep the eyes moist. 
E)  orient the eyes. 
A)  maintain balance. 
B)  regulate pupil size. 
C)  provide clearer vision. 
D)  keep the eyes moist. 
E)  orient the eyes.

Question 18

A ringing in the ears is considered

Accepted Answer

A)  tinnitus. 
B)  trachoma. 
C)  nystagmus. 
D)  mydriasis. 
E)  otitis media. 
A)  tinnitus. 
B)  trachoma. 
C)  nystagmus. 
D)  mydriasis. 
E)  otitis media.

Question 19

Arrange the following events in correct sequence. (1) retinal cells generate action potential
(2) person becomes aware of the information obtained by CNS
(3) visual cortex translates action potential
(4) bright light is shone into the eye
(5) optic nerve conducts action potential to CNS

Accepted Answer

A)  4, 5, 1, 3, 2 
B)  4, 1, 2, 3, 5 
C)  4, 1, 5, 3, 2 
D)  4, 2, 1, 5, 3 
E)  4, 3, 5, 2, 1 
A)  4, 5, 1, 3, 2 
B)  4, 1, 2, 3, 5 
C)  4, 1, 5, 3, 2 
D)  4, 2, 1, 5, 3 
E)  4, 3, 5, 2, 1

Question 20

Which of the following is false?

Accepted Answer

A)  Rods cannot detect color. 
B)  The visual pigment of cones is iodopsin. 
C)  Most of the optic tract axons terminate in the lateral geniculate nucleus of the thalamus. 
D)  Association neurons in the inner retinal layers modify signals of rods and cones. 
E)  Most of the optic tract axons terminate in the medial geniculate nucleus of the thalamus. 
A)  Rods cannot detect color. 
B)  The visual pigment of cones is iodopsin. 
C)  Most of the optic tract axons terminate in the lateral geniculate nucleus of the thalamus. 
D)  Association neurons in the inner retinal layers modify signals of rods and cones. 
E)  Most of the optic tract axons terminate in the medial geniculate nucleus of the thalamus.

Exam 15: The Special Senses

Which of the following definitions best describes the timbre of sounds?

To focus on objects closer than 20 feet,

As an object moves closer to the eye,

Which of the following is NOT an intrinsic eye muscle?

Arrange the following parts of the neuronal pathway for hearing in the correct sequence. (1) inferior colliculus (2) medial geniculate nucleus (3) superior olivary nucleus (4) auditory cortex (5) cochlear nucleus

The membranous labyrinth is located within the bony labyrinth of the inner ear.

Match the structure with the appropriate description. -iris

The conscious perception of smell is a function of the:

To which colors are the three different kinds of cones sensitive?

Sensory structures that detect taste are

Match the description with the most appropriate structure. -perilymph

Night blindness could be caused by

Identify the type of hair cells of the spiral organ that are responsible for hearing.

Which type of taste has the lowest threshold?

Match the structure with the appropriate description. -membranous labyrinth

The contractile structure that surrounds the pupil is the

The blink reflex is designed to

A ringing in the ears is considered

Arrange the following events in correct sequence. (1) retinal cells generate action potential (2) person becomes aware of the information obtained by CNS (3) visual cortex translates action potential (4) bright light is shone into the eye (5) optic nerve conducts action potential to CNS

Which of the following is false?

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