Exam 6: The Peripheral Nervous System: Afferent Division Special Senses

Select the structure that is not found inside the cochlear duct.

The helicotrema allows sound waves to pass from the scala vestibuli into the scala media.

Match the following eye disorder with its description. a.color blindness b.night blindness c.glaucoma d.hyperopia e.diplopia f.presbyopia g.myopia h.cataract i.astigmatism -Increased intraocular pressure

Which of the following structures normally controls the amount of light entering the eye?

Afferent input that does not reach the conscious level is

Olfactory receptors

Indicate the characteristics associated with each part of the ear using the answer code below: a.external ear b.middle ear c.cochlea d.semicircular canal e.utricle and saccule f.external ear and middle ear g.cochlea, semicircular canal, utricle and saccule h.semicircular canal, utricle and saccule i.cochlea and semicircular canal -Fluid-filled

The utricle detects changes in head position away from vertical and also detects horizontally directed linear acceleration and deceleration.

Each region of the auditory cortex becomes excited only in response to a specific tone detected by a selected portion of the basilar membrane.

The function of the eustachian tube is to provide a drainage path for the fluid in the inner ear.

The primary olfactory cortex is in the temporal lobe.

Match the following eye disorder with its description. a.color blindness b.night blindness c.glaucoma d.hyperopia e.diplopia f.presbyopia g.myopia h.cataract i.astigmatism -Vitamin A deficiency

Rods produce vision in shades of gray.

Which of the following does not occur in a photoreceptor during exposure to light?

The point of the retina with the most distinct vision is the ____________________, and it is located within a specific region of the retina called the ____________________.

Rods are not present in the fovea or the blind spot, whereas cones are present in the fovea but not in the blind spot.

____________________ refers to the phenomenon by which a stimulus of the same intensity does not elicit a receptor potential of the same magnitude.

Indicate the properties associated with each type of nociceptor by using the answer code below: a.mechanical nociceptor b.thermal nociceptor c.polymodal nociceptor d.mechanical nociceptor and thermal nociceptor -Activates fast pain pathway

Polymodal nociceptors

Use the figure above to answer the corresponding questions. -Match the following structures with the appropriate letter.Some letters may be used more than once. ______Chamber that contans hair cells for hearng ______Membrane in which steracilia for hearing are embedded ______Number identifying the helicotrema ______Cantains endolymph ______Identifies the oval wincow ______Identifes the orpan that contains hair cells sensitive to $50 u n d$ vibrations