Central Nervous System

Question 1

What does the myelin sheath wrapping around the axon do?

Answer 1

Insulates Faster impulse conduction along the axon Eg: Destruction of the myelin sheath (as in multiple sklerosis) would result in impulses be conducted much slower or not at all.

Question 2

Movement, behaviour, memory, speech, learning, planning, reasoning is controlled by what lobe in the brain?

Answer 2

frontal

Question 3

the parietal lobe is responsible for what?

Answer 3

sensory perception

Question 4

vision is controlled by what lobe?

Answer 4

occipital

Question 5

hearing, language, taste, smell is controlled by what lobe?

Answer 5

temporal

Question 6

blood pressure is controlled by the

Answer 6

medulla oblongata

Question 7

respiratory control is controlled by the

Answer 7

pons and medulla

Question 8

startle reflexes are controlled by the

Answer 8

midbrain

Question 9

memory is controlled by the

Answer 9

limbic system

Question 10

maintaining alertness is controlled by the

Answer 10

reticular formation

Question 11

balance and posture is controlled by the

Answer 11

cerebellum

Question 12

protective layers of connective tissue coverings the central nervous system are called?

Answer 12

meninges

Question 13

The junction between an axon terminal and a muscle is called a:

Answer 13

neuromuscular junction

Question 14

The dorsal root ganglion:

Answer 14

contains cell bodies of sensory neurons outside the CNS.

Question 15

Problems in balance may follow injury to which nerve?

Answer 15

vestibularcochlear nerve

Question 16

In the visual pathway to the brain some of the axons from each optic nerve cross over to the other side in the:

Answer 16

optic chiasma

Question 17

The structures involved in balance are:

Answer 17

semicircular canals and vestibule

Question 18

The autonomic nervous system innervates:

Answer 18

smooth and cardiac muscles and glands

Question 19

The protective outer white layer of the eyeball is the:

Answer 19

sclera

Question 20

Skeletal muscle is innervated by:

Answer 20

somatic nervous system