Deck 21: The Sensory System

Question 1

Which statements demonstrate understanding of the location of the sense receptors? Select all that apply.

A) Receptors for the sense of smell are located in the upper nasal cavity.
B) Receptors for the sense of touch are located throughout the body.
C) Receptors for the sense of vision are located in lens of the eye.
D) Receptors for hearing are located in the semicircular canals.
E) Receptors for the taste of sweet are located on the tongue

Answer 1

Receptors for the sense of smell are located in the upper nasal cavity.
Receptors for the sense of touch are located throughout the body.
Receptors for the taste of sweet are located on the tongue

Question 2

What information should the nurse provide the client when discussing the function of the cornea?

A) Retractable covers for the eye's anterior surface
B) Produces tears and keeps the eye's surface moist and lubricated
C) Influences visual acuity by refracting light
D) Gives the eye its specific color

Answer 2

Influences visual acuity by refracting light

Question 3

What condition results from the dysfunction of the lacrimal gland?

A) A cyst on the eyelid
B) Dry, irritated eyes
C) Impaired visual acuity
D) Iris is lacking color

Answer 3

Dry, irritated eyes

Question 4

What information should the nurse provide the client when discussing the vitreous humor? Select all that apply.

A) Helps maintain the eyeball's shape
B) Contributes to intraocular pressure
C) Loss of the vitreous humor can lead to blindness
D) Provides nutrients to the cornea
E) Provides oxygen to the avascular lens

Question 5

Which nerve is responsible for carrying sensations of eye pain?

A) Oculomotor nerve
B) Optic nerve
C) Trigeminal nerve
D) Trochlear nerve

Question 6

What is the function of the oculomotor nerve?

A) Voluntary eye movement
B) Carries visual images to the brain
C) Constricts and dilates the pupil
D) Carries sensations of eye pain the brain

Question 7

Which statement describes the resulting vision dysfunction caused by astigmatism?

A) Objects at a distance appear blurred
B) Cannot see close objects clearly
C) Cannot bring horizontal and vertical lies into focus at the same time
D) Gradual loss of the function of accommodation

Question 8

Which are functions of the inner ear? Select all that apply.

A) Protecting internal structures from foreign substances
B) Transmission of sound
C) Transmitting sound waves
D) Providing information about body position to the brain
E) Catching sound waves

Question 9

Which nursing intervention focuses on the dysfunction of the external ear?

A) Flushing the ear to remove an insect
B) Educating the client to the dangers of loud noises
C) Assisting the client put a hearing aide in place
D) Helping a dizzy client move from bed to chair safely

Question 10

Which part of the brain is responsible for receiving visual information via the optic nerve?

A) Temporal lobe
B) Parietal lobe
C) Occipital lobe
D) Cerebellum

Question 11

Which is the correct order of the steps in the path taken by sound waves to the brain?
1) Sound waves enter through the ear's external auditory canal and strike the tympanic membrane.
2) The stapes vibrates against the membrane, setting the fluid of the cochlea in motion, which in turn passes on to the hair-like nerve ending in the organ of Corti.
3) The stimuli in the organ of Corti are sent to the vestibulocochlear nerve and then to the temporal lobe in the cerebral cortex, where the sounds are interpreted.
4) The tympanic membrane vibrates at various speeds in response to various pitches of sounds.
5) The ossicles within the middle ear act as a moveable bridge to transmit these vibrations to the oval window, which amplifies the sound waves.

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

Question 12

How do the ossicles work in protecting the ear?

A) Aid in protecting the ear from foreign objects
B) Protect the two layers by separating the external from the middle ear
C) Protect the vital internal organs of the middle and inner ear from injury
D) Equalize the pressure in the middle ear with atmospheric pressure

Question 13

What part of the brain is responsible for maintaining equilibrium and coordination?

A) Temporal lobe
B) Parietal lobe
C) Occipital lobe
D) Cerebellum

Question 14

Where on the tongue are the taste buds sensitive to bitter tastes located?

A) Tip
B) Sides
C) Back
D) Apex

Question 15

What is an effect of aging on the sense of vision?

A) Hyperopia
B) Myopia
C) Astigmatism
D) Presbyopia

Question 16

Which is the function of the aqueous humor?

A) Regulates the amount of light that enters the eye
B) Gives the eye its specific color
C) Maintains intraocular pressure
D) Focuses the light rays on the retina

Question 17

Which is the function of the Eustachian tube?

A) Transmits vibration to the fluid-filled inner ear at the oval window
B) Separates the external from the middle ear
C) Sends sensory information to the cerebellum and midbrain
D) Equalizes the pressure in the middle ear with atmospheric pressure

Question 18

A nurse is caring for a client who reports being unable to read a newspaper or a magazine properly, even in normal light. Which is the most likely cause for this condition?

A) Pupil is no longer able to dilate fully
B) Debris has built up within the eye
C) Slow body secretions
D) Continuous strain on the eye

Question 19

A 30-year-old client arrives at the community healthcare center reporting dizziness and a feeling of the room spinning. Based on the client's symptoms, which condition best describes what the client most likely experiencing?

A) Presbycusis
B) Inner ear infection
C) Tinnitus
D) Vertigo

Question 20

What is the function of the ears' semicircular canal?

A) Sends sensory information to the cerebellum and the midbrain
B) Transmits information on the body's position to the brain
C) Equalizes the pressure in the middle ear with atmospheric pressure
D) Begins the transmission of nerve stimuli related to sound

Question 21

Which factor is normal vision dependent upon?

A) Contrast between object and background
B) Protective outer layer of the eyeball
C) Specific color of the eye
D) Nutrient and oxygen provided to the eye