Olfactory and Visual System

Question 1

The cilia that express receptors for odors represent the:

Answer 1

processes of specialized olfactory receptor cells.

Question 2

Head trauma can sever the olfactory:

Answer 2

nerve fibers.

Question 3

The olfactory tract consists of:

Answer 3

mitral cell afferent and efferent axons.

Question 4

The thalmic nucleus that relays olfactory signals is the

Answer 4

mediodorsal nucleus.

Question 5

Olfaction is believed to reach the level of consciousness in the:

Answer 5

posterior orbitofrontal cortex.

Question 6

A visual image is reversed, top for bottom and left for right, as it passed through the:

Answer 6

pupil.

Question 7

The term “magnocellular” with respect to the eye refers to:

Answer 7

ganglion cells in the peripheral retina.

Question 8

Fibers that make up the optic nerve represent axons of:

Answer 8

ganglion cells.

Question 9

Fibers that make up the optic tract represent axons of:

Answer 9

ganglion cells.

Question 10

Visual system fibers that cross in the optic chiasm represent axons of neurons located in the:

Answer 10

nasal retina.

Question 11

A lesion of the optic nerve will result in

Answer 11

ipsilateral unilateral blindness.

Question 12

A lesion of the optic tract will result in:

Answer 12

contralateral homonymous hemianopsia.

Question 13

The primary visual area (BA 17) is located

Answer 13

above and below the calcarine fissure.