Senses

45 terms by lizzinglemons 

Ready to study?
Start with Flashcards

Create a new folder

Advertisement Upgrade to remove ads

Transduction begins with an action potential in a sensory receptor.

FALSE

Sensory receptors sense only stimuli external to the body, such as light, sound waves, smell, and touch.

FALSE

Fast pain is a localized response mediated by myelinated nerve fibers.

TRUE

Olfaction results from the stimulation of chemoreceptors.

TRUE

Taste signals travel from the tongue through the facial and glossopharyngeal nerves.

TRUE

The ossicles belong to the middle ear.

TRUE

The vestibule contains organs of hearing and equilibrium.

FALSE

The middle ear consists of a fluid-filled chamber.

FALSE

The cornea belongs to the tunica fibrosa (fibrous layer) of the eyeball.

TRUE

Rods secrete glutamate from the base of the cell when exposed to light.

FALSE

Vitamin A is necessary for the synthesis of rhodopsin.

TRUE

The output energy of all receptors is a type of ___ energy.

A. chemical

B. mechanical

C. thermal

D. electrical

E. nuclear

D. electrical

The initial effect of a stimulus on a sensory receptor is a local electrical change specifically called a(an)

A. action potential.

B. graded potential.

C. local potential.

D. sensory potential.

E. receptor potential.

E. receptor potential.

What is a sensation?

A. a response of a sensory receptor

B. a response of a sensory organ

C. a subjective awareness of a stimulus

D. an unconscious response to a stimulus

E. a response to any conscious stimulus

C. a subjective awareness of a stimulus

Changes in cerebrospinal fluid pH are detected by

A. thermoreceptors.

B. chemoreceptors.

C. nociceptors.

D. mechanoreceptors.

E. proprioceptors.

B. chemoreceptors.

Changes in blood pressure are detected by ___ in arteries.

A. mechanoreceptors

B. chemoreceptors

C. proprioceptors

D. nociceptors

E. thermoreceptors

A. mechanoreceptors

This organ does not have nociceptors.

A. brain

B. heart

C. kidney

D. liver

E. stomach

A. brain

Pain, heat, and cold are detected by

A. tactile (Meissner) discs.

B. tactile corpuscles.

C. lamellar (pacinian) corpuscles.

D. free nerve endings.

E. end (Krause) bulbs.

D. free nerve endings.

Most second-order somesthetic neurons synapse with third-order neurons in the

A. midbrain.

B. thalamus.

C. spinothalamic tract.

D. hypothalamus.

E. postcentral gyrus.

B. thalamus.

This figure shows the structure of a taste bud. Which cell produces a receptor potential?

A. 1

B. 2

C. 3

D. 4

E. 5

E. 5

What structure is visible to the naked eye?

A. lingual papilla

B. taste (gustatory) cell

C. taste hair

D. taste bud

E. taste pore

A. lingual papilla

What taste sensation is produced by amino acids such as aspartic acid and glutamic acid?

A. salty

B. umami

C. bitter

D. sweet

E. sour

B. umami

Pheromones stimulate

A. hair cells.

B. supporting cells.

C. taste cells.

D. olfactory cells.

E. olfactory glands.

D. olfactory cells.

This figure shows the internal anatomy of the ear. Which structure belongs to the inner ear?


A. 1

B. 2

C. 3

D. 4

E. 5

D. 4

This figure shows the internal anatomy of the ear. What does "7" represent?

A. the cochlea

B. the vestibule

C. the semicircular duct

D. the stapes

E. the tympanic cavity

A. the cochlea

This figure shows the internal anatomy of the ear. What does "3" represent?

A. the incus

B. the malleus

C. the stapes

D. the oval window

E. the round window

A. the incus

This figure shows the spiral organ (organ of Corti). Which structure acts as a transducer?

A. 1

B. 6

C. 4

D. 5

E. 7

B. 6

The structure shown in this figure is located within which of the following structures?

A. Scala vestibuli

B. Scala tympani

C. Cochlear duct

D. Anterior semicircular duct

E. Vestibule

C. Cochlear duct

Which structure allows upper respiratory infections to spread from the throat to the tympanic cavity?

A. the oval window

B. the cochlear duct

C. the auditory canal

D. the auditory (eustachian) tube

E. the tympanic cavity

D. the auditory (eustachian) tube

Stimuli produced by sound waves reach the brain following the pathway:

A. cochlear duct → spiral organ → ossicles → oval window → auditory canal → tympanic membrane → fibers of cochlear nerve

B. auditory canal → tympanic membrane → oval window → cochlear duct → ossicles → spiral organ → fibers of cochlear nerve

C. cochlear duct → oval window → auditory canal → tympanic membrane → ossicles → spiral organ → fibers of cochlear nerve

D. tympanic membrane → auditory canal → ossicles → oval window → cochlear duct → spiral organ → fibers of cochlear nerve

E. auditory canal → tympanic membrane → ossicles → oval window → cochlear duct → spiral organ → fibers of cochlear nerve

E. auditory canal → tympanic membrane → ossicles → oval window → cochlear duct → spiral organ → fibers of cochlear nerve

Which of these is most vulnerable to irreversible damage caused by a very loud noise?

A. the ossicles

B. cochlear hair cells

C. the tympanic membrane

D. fibers of the cochlear nerve

E. the tectorial membrane

B. cochlear hair cells

Each upward movement of the _____ causes the stereocilia of the inner hair cells to bend, opening ___ gates.

A. basilar membrane; K+

B. tectorial membrane; K+

C. vestibular membrane; K+

D. basilar membrane; Na+

E. tectorial membrane; Na+

A. basilar membrane; K+

A 100 dB sound (loud) of 150 Hz (low pitch) would cause the

A. tectorial membrane to vibrate slightly near its distal end.

B. tectorial membrane to vibrate vigorously near its proximal end.

C. basilar membrane to vibrate slightly near its proximal end.

D. basilar membrane to vibrate vigorously near its distal end.

E. basilar membrane to vibrate slightly near its distal end.

D. basilar membrane to vibrate vigorously near its distal end.

When you spin while sitting in a swivel chair with your eyes closed, you can sense this movement by means of your

A. cochlea.

B. saccule.

C. semicircular ducts.

D. utricle.

E. spiral organ (organ of Corti).

C. semicircular ducts.

When you travel in an elevator, the ___ senses when the elevator is moving.

A. inner hair cells of the basilar membrane

B. outer hair cells of the basilar membrane

C. hair cells of the tectorial membrane

D. hair cells of the otolithic membrane of the macula utriculi

E. hair cells of the otolithic membrane of the macula sacculi

E. hair cells of the otolithic membrane of the macula sacculi

The ___ do(does) not contribute to the sense of equilibrium.

A. retina

B. semicircular canals

C. saccule

D. utricle

E. vallate papillae

E. vallate papillae

This figure shows a sagittal section of the eye. What does "2" represent?

A. the sclera

B. the choroid

C. the retina

D. the optic nerve

E. the vitreous body

B. the choroid

This figure shows a schematic of the layers of the retinal cells. What does "5" represent?

A. a bipolar cell

B. a pigment cell

C. a rod

D. a cone

E. a ganglion cell

A. a bipolar cell

Human vision is limited to wavelengths ranging from ___ nm.

A. 4 to 70

B. 40 to 700

C. 400 to 700

D. 400 to 7,000

E. 4,000 to 7,000

C. 400 to 700

These are all accessory structures of the eye except

A. the conjunctiva.

B. the palpebrae.

C. the lacrimal apparatus.

D. the superior oblique.

E. the cornea.

E. the cornea.

When you view objects close to the eye, the eye makes an adjustment called

A. emmetropia.

B. accommodation.

C. refraction.

D. myopia.

E. diplopia.

B. accommodation.

___ are responsible for photopic (day) vision as well as trichromatic (color) vision.

A. Bipolar cells

B. Rods

C. Cones

D. Ganglion cells

E. Pigment cells

C. Cones

___ are the only retinal cells that produce action potentials.

A. Rods

B. Cones

C. Ganglion cells

D. Bipolar cells

E. Horizontal cells

C. Ganglion cells

The first-order neurons in the visual pathway are

A. the optic nerve fibers.

B. the rods and cones.

C. the ganglion cells.

D. the bipolar cells of the retina.

E. the photoreceptors of the eye.

D. the bipolar cells of the retina.

Half of the fibers of each optic nerve decussate at the ___.


A. superior colliculus

B. optic chiasm

C. lateral geniculate nucleus of the thalamus

D. optic foramen

E. midbrain

B. optic chiasm

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set