Question 1

Sensory receptors for balance are found in the

Accepted Answer

A)  pinna.
B)  cochlea.
C)  auditory ossicles.
D)  semicircular canals.
E)  auditory tube.

Question 2

Match the description with its correct name.
-astigmatism

Accepted Answer

A)  difficulty seeing distant objects
B)  a type of refractory error
C)  clouding of the lens of the eye
D)  increased intraocular pressure that can lead to loss of vision
E)  loss of acute central vision

Question 3

Match the structure with the appropriate description.
-olfactory vesicle

Accepted Answer

A)  relay olfactory information to the brain and synapse with association neurons in the olfactory bulb
B)  area of the brain where the olfactory tracts terminate
C)  enlargements on the dendrites of olfactory neurons
D)  fibers that connect the olfactory bulb to the cortex
E)  the expanded anterior portions of the olfactory nerves

Question 4

In order for a molecule to be detected by the olfactory neurons,it must

Accepted Answer

A)  be present in high concentrations.
B)  be one of the seven primary classes of odors.
C)  be dissolved in fluid covering the olfactory epithelium.
D)  interact with the mechanoreceptors of the olfactory hair membrane.
E)  enter the nose slowly.

Question 5

Tears

Accepted Answer

A)  are produced only when a person cries.
B)  wash foreign objects away from the eye.
C)  contain lysozyme to trap dust.
D)  are very acidic and kill microbes.
E)  contain little water.

Question 6

Match the structure with the appropriate description.
-auditory ossicles

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

Question 7

Match the structure with the appropriate description.
-sty

Accepted Answer

A)  lubricate the eyelid
B)  protect the eye from falling objects
C)  an inflamed ciliary gland
D)  small tubes that drain tears into the lacrimal sac
E)  inflammation of the conjunctiva

Question 8

To which of the following substances would the taste buds be most sensitive?

Accepted Answer

A)  syrup
B)  vinegar
C)  salt water
D)  quinine (tonic) water
E)  jelly

Question 9

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

Question 10

Match the structure with the appropriate description.
-olfactory bulb

Accepted Answer

A)  relay olfactory information to the brain and synapse with association neurons in the olfactory bulb
B)  area of the brain where the olfactory tracts terminate
C)  enlargements on the dendrites of olfactory neurons
D)  fibers that connect the olfactory bulb to the cortex
E)  the expanded anterior portions of the olfactory nerves

Question 11

Why does a person's nose run when he cries?

Accepted Answer

A)  Tears drain into the nasal cavity via the nasolacrimal duct.
B)  Parasympathetic nerve stimulation causes the nose to secrete mucus.
C)  Intense stimulation of the facial nerve as a result of crying increases nasal secretions.
D)  The lacrimal glands secrete tears directly into the nose.
E)  This stimulates fluid production in the nose.

Question 12

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.

Question 13

The optic disc

Accepted Answer

A)  is located in the vascular tunic.
B)  is the site of greatest visual acuity.
C)  is also called the macula lutea.
D)  is on the anterior surface of the eye.
E)  contains no photoreceptor cells.

Question 14

Which of the following is NOT a feature of the retina?

Accepted Answer

A)  ganglion cells
B)  photoreceptors
C)  optic chiasm
D)  optic disc
E)  fovea centralis

Question 15

The direction from which a sound is coming can be determined by the

Accepted Answer

A)  volume of the sound.
B)  frequency of sound waves.
C)  amplitude of the sound waves.
D)  differences in the time that sound waves take to reach each ear.
E)  timbre of sounds.

Question 16

Why does inhaling deeply and slowly through the nose help to identify an odor?

Accepted Answer

A)  More air containing the odor is brought into contact with the olfactory epithelium.
B)  Impulses originate slowly in the olfactory epithelium.
C)  The tissue needs more time in contact with the odor.
D)  Threshold for odor detection is high.
E)  Receptors in the olfactory epithelium are highly specific.

Question 17

Match the structure with the appropriate description.
-macula

Accepted Answer

A)  blood vessels enter and the optic nerve exits here
B)  a small yellow spot near the center of the posterior retina
C)  the portion of the retina with the greatest visual acuity
D)  a jellylike substance in the posterior cavity of the eye
E)  the fluid that fills the anterior cavity of the eye

Question 18

Which of the following structures is considered to be an accessory structure of the eye?

Accepted Answer

A)  lens
B)  retina
C)  sclera
D)  palpebrae
E)  cornea

Question 19

The area of greatest visual acuity is the

Accepted Answer

A)  lens.
B)  fovea centralis.
C)  optic disc.
D)  posterior chamber.
E)  blind spot.

Question 20

Blood vessels enter the eye and nerve processes exit the eye at the

Accepted Answer

A)  optic disc.
B)  macula lutea.
C)  sensory retina.
D)  fovea centralis.
E)  pupil.

Exam 15: The Special Senses

Which of the following is NOT a feature of the retina?

Correct AnswerverifiedShow Answer

Why does a person's nose run when he cries?

Correct AnswerverifiedShow Answer

To which of the following substances would the taste buds be most sensitive?

Correct AnswerverifiedShow Answer

Match the structure with the appropriate description. -auditory ossicles

Correct AnswerverifiedShow Answer

Match the structure with the appropriate description. -iris

Correct AnswerverifiedShow Answer

Match the structure with the appropriate description. -olfactory vesicle

Correct AnswerverifiedShow Answer

Match the description with its correct name. -astigmatism

Correct AnswerverifiedShow Answer

Blood vessels enter the eye and nerve processes exit the eye at the

Correct AnswerverifiedShow Answer

Which of the following structures is considered to be an accessory structure of the eye?

Correct AnswerverifiedShow Answer

The direction from which a sound is coming can be determined by the

Correct AnswerverifiedShow Answer

Match the structure with the appropriate description. -olfactory bulb

Correct AnswerverifiedShow Answer

Which of the following is false?

Correct AnswerverifiedShow Answer

The area of greatest visual acuity is the

Correct AnswerverifiedShow Answer

Sensory receptors for balance are found in the

Correct AnswerverifiedShow Answer

Why does inhaling deeply and slowly through the nose help to identify an odor?

Correct AnswerverifiedShow Answer

The optic disc

Correct AnswerverifiedShow Answer

Tears

Correct AnswerverifiedShow Answer

Match the structure with the appropriate description. -macula

Correct AnswerverifiedShow Answer

Match the structure with the appropriate description. -sty

Correct AnswerverifiedShow Answer

In order for a molecule to be detected by the olfactory neurons,it must

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified