Nervous System 6

Question 1

In the white matter, deep to the cerebral cortex, tracts include

Answer 1

• Commissural fibers
• Association fibers
• Projection fibers

Question 2

Tracts between hemispheres

left to right, right to left

Answer 2

Commissural Fibers

Question 3

Tracts between cortical areas of a single hemisphere

front to back, back to front

Answer 3

Association FIbers

Question 4

Tracts to and from the brainstem and spinal cord

up down, down up

Answer 4

Projection Fibers

Question 5

Diencephalon includes

Answer 5

Thalamus

Hypothalamus

Question 6

Part of brain through which most sensory info and motor info passes on its way to and from the cerebral cortex

Answer 6

Thalamus

Question 7

What is the brain’s most important visceral control center?

Answer 7

The Hypothalamus

Question 8

What joins the hypothalamus to the thalamus

Answer 8

Interthalamic adhesion

Question 9

Function of the anterior nucleus

Answer 9

“thirst center”

autonomic control center

Question 10

Function of paraventricular nucleus

Answer 10

Produces oxytocin and antidiuretic hormone (ADH)

Question 11

Function of Preoptic area

Answer 11

“Thermostat” regulates body temp

Question 12

Function of Suprachiasmatic Nucleus

Answer 12

Regulates sleep-wake rhythm (circadian)

Question 13

How many pairs of cranial nerves?

Answer 13

12

Question 14

4 cranial nerves for Rudolph

Answer 14

• Optic Nerve
• Vestibulocochlear Nerves
• Vagus Nerves
• Accessory Nerves

Question 15

Optic Nerves

Answer 15

CN II
purely sensory
transmits visual impulses from retina to thalamus

Question 16

Vestibulocochlear nerves

Answer 16

CN VIII

Primarily sensory

Question 17

Vagus Nerves

Answer 17

CN X
Mixed nerve (sensory and motor neurons)

Question 18

Accessory Nerves

Answer 18

CN XI

Primarily motor

Question 19

• Enters brain at the pons-medulla border

- Transmits impulsesfrom the hearing and equilibrium receptors of the inner ear

Answer 19

Vestibulocochlear Nerves

Question 20

• Arise from the medulla
• Most of its motor fibers are autonomic
• Carry motor fibers to, sensory fibers from, the pharynx, larynx, and visceral organs of the thorax and abdomen

Answer 20

Vagus Nerves

Question 21

• Arise from the cervical spinal cord

- Supply the trapezius and sternocleidomastoid

Answer 21

Accessory Nerves

Question 22

CNII

Answer 22

Optic Nerves

Question 23

CN VIII

Answer 23

Vestibulocochlear nerves

Question 24

CN X

Answer 24

Vagus Nerves

Question 25

CN XI

Answer 25

Accessory Nerves