Chapter 42 Sensory System

Chapter 42  Sensory System

Complete Chapter Questions And Answers
 

Sample Questions

MULTIPLE CHOICE

1. When the nurse is assessing the client’s ability to receive and process stimuli through sensory organs, this is evaluating the client’s:
a.
sensation
c.
cognition
b.
perception
d.
awareness

ANS: A
Sensation is the ability to receive and process stimuli through the sensory organs. Perception is the ability to experience, recognize, organize, and interpret sensory stimuli.

PTS: 1 DIF: Comprehension REF: White (2010)

2. Components of cognition include the cerebral functions of memory, judgment, perception, affect, and:
a.
behavior
c.
hearing
b.
language
d.
vision

ANS: B
The process of organizing and interpreting stimuli depends on a person’s level of intellectual functioning. The intellectual ability to think is called cognition. Sensation and perception use the afferent nerve pathways, the ascending pathways that transmit sensory impulses to the brain; the efferent nerve pathways, the descending pathways that send sensory impulses from the brain; the spinal cord; the brainstem; and the cerebrum. Cognition includes the cerebral functions of memory, affect, judgment, perception, and language. The person must be conscious for these higher functions to occur.

PTS: 1 DIF: Comprehension REF: White (2010)

3. When assessing clients for sensory, perceptual, and cognitive alterations, the nurse must also evaluate their:
a.
genetic history
c.
level of consciousness
b.
ability to concentrate
d.
family support systems

ANS: C
The process of organizing and interpreting stimuli depends on a person’s level of intellectual functioning. The intellectual ability to think is called cognition. Sensation and perception use the afferent nerve pathways, the ascending pathways that transmit sensory impulses to the brain; the efferent nerve pathways, the descending pathways that send sensory impulses from the brain; the spinal cord; the brainstem; and the cerebrum. Cognition includes the cerebral functions of memory, affect, judgment, perception, and language. The person must be conscious for these higher functions to occur.

PTS: 1 DIF: Comprehension REF: White (2010)

4. What are the two main functions of the inner ear?
a.
amplification and sound transmission
b.
hearing and equilibrium
c.
pressure equalization and hearing
d.
sound transmission and pressure equalization

ANS: B
In the inner ear, the nerves respond to different sounds and initiate neural responses that are sent along the auditory nerve (cranial nerve VIII) to the brain. The inner ear also maintains equilibrium.

PTS: 1 DIF: Comprehension REF: White (2010)

5. Which structure is located within the middle ear?
a.
vestibule
c.
stapes
b.
semicircular canals
d.
oval window

ANS: C
The tympanic membrane is the boundary between the outer ear and middle ear. The three bones (ossicles) of the middle ear are the malleus (hammer), incus (anvil), and stapes (stirrup). The malleus is attached to the tympanic membrane; the incus joins the malleus to the stapes, which rests on the oval window. The vibration created by sound waves passes through the outer ear canal to the tympanic membrane and then to these three bones. The eustachian tube opens into the pharynx from the middle ear to equalize pressure on both sides of the eardrum.

PTS: 1 DIF: Comprehension REF: White (2010)