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

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 -Contains a cupula

Indicate which of the following regions are part of ascending pain pathways, descending analgesic pathways, or both. a.part of ascending pain pathway b.part of descending analgesic pathway c.participates in both pain and analgesic pathways -Thalamus

The ossicular system transmits the vibrations of the tympanic membrane to the oval window, movement of which first sets up pressure waves in the endolymph.

In hyperopia,

Axons from retinal ganglion cells form the optic nerve.

Phasic receptors

The structure associated with pheromonal reception is

Match the following receptors to their locations. a.chemoreceptors b.mechanoreceptors c.photoreceptors -Semicircular canals

Retinal is derived from vitamin A and is found in rods but not the cones.

Vestibular information is important for all of the following except

A photoreceptor generates action potentials when its photopigment is activated.

The oval window

Match the following term with its description. a.timbre b.pitch c.intensity -Dependent on the overtones

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 -Contains the organ of Corti

Identify the true statement(s) about receptors:

The visual cortex on the right side receives information from the lateral side of the right eye and the media side of the left eye.

Indicate the properties of rods and cones using the following answer code: a.rods b.cones c.both rods and cones -Three different types as a result of difference in photopigment content

The image on the retina is reversed upside down and backwards because of bending of light rays.

Indicate the properties of rods and cones using the following answer code: a.rods b.cones c.both rods and cones -Low acuity

In which structure do sound waves first pass?