Chapter 13: Sensory System
Herlihy: The Human Body in Health and Illness, 6th Edition
MULTIPLE CHOICE
1. What is the name of the specialized area of a sensory neuron that detects a specific stimulus? a. Trac
b. Receptor
c. Dorsal root
d. Node of Ranvier
ANS: B
2. Photoreceptors detect
a. heat.
b. acid.
c. light.
d. tissue distortion.
ANS: C
3. A nociceptor detects
a. pain.
b. light.
c. radiation.
d. [H+]. ANS: A
4. Olfaction refers to the sense of
a. vision.
b. taste.
c. smell.
d. equilibrium.
ANS: C
5. The gustatory sensation is most related to the
a. eighth cranial nerve.
b. rods and cones.
c. organ of Corti.
d. taste buds.
ANS: D
6. The colored part of the eye that contains the intrinsic eye muscles, including the circular muscle and the
(the)
a. suspensory ligaments.
b. iris.
c. retina.
d. macula lutea.
ANS: B
7. Which structure is attached to the lens, causing its shape to be changed?
a. Retina
b. Iris
c. Cornea
d. Suspensory ligaments
ANS: D
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10. Which of the following structures secretes tears?
a. Lacrimal gland
b. Optic disc
c. Canal of Schlemm
d. Ciliary body
ANS: A
11. Which of the following structures is located outside the eye?
a. Conjunctiva
b. Ciliary body
c. Lens
d. Vitreous humor
ANS: A
12. Rods
a. are concentrated in the macula lutea.
b. detect red, yellow, and blue colors.
c. are concerned with night vision.
d. are located in the occipital lobe.
ANS: C
13. Which layer of the eyeball supplies blood to the retina?
a. Rods and cones
b. Sclera
c. Choroid
d. Iris
ANS: C
14. The superior rectus muscle
a. causes miosis.
b. causes mydriasis.
c. moves the eyeball.
d. regulates accommodation.
ANS: C
15. Which of the following is located in the posterior cavity of the eyeball?
a. Vitreous humor
b. Cornea
c. Lens
d. Ciliary muscle
ANS: A
16. Which of the following is least related to the optic nerve?
a. Cranial nerve II
b. Sensory nerve
c. Conveys information from the retina to the occipital lobe
d. Innervates the extrinsic eye muscles
ANS: D
17. An increase of intraocular pressure is most likely to cause
a. cataracts.
b. damage to the retina, leading to blindness.
c. macular degeneration.