Overview of the Nervous System: pg 2

Question 1

What makes up the CNS?

Answer 1

• Brain
• Brainstem
• Spinal cord

Question 2

What makes up the PNS?

Answer 2

• Nerves and nerve roots
• Ganglia
• Nerve endings, receptors

Question 3

T/F - Neurons are capable of replicating.

Answer 3

False - Not capable of replicating

Question 4

Neurons carry information in (one/multiple) directions.

Answer 4

One

Question 5

What type cells support, protect, surround, myelinate, and modulate the environment of the neurons?

Answer 5

Glial

Question 6

What are the glia of the CNS?

Answer 6

Oligodendrocyte
Astrocytes
Ependymal cells

Question 7

What are the glia of the PNS?

Answer 7

Schwann cells

Satellite cells

Question 8

Only the cell body and dendrites contain what?

Answer 8

Ribosomes, RER, Nissl and Golgi.

Question 9

All parts of the neuron contain what?

Answer 9

Mitochondira, microtubules, filaments, and vesicles

Question 10

Where is the collection of cell bodies and axons in the CNS?

Answer 10

Gray matter (nuclei, cell columns, cerebral cortex, etc)

Question 11

Where is he collection of cell bodies and axons in the PNS?

Answer 11

Ganglia (DRG and autonomic)

Question 12

Where are the collection of axons with NO cell bodies in the CNS?

Answer 12

White matter (white column, tract, fasiculus, lemniscus, corpus collosum, etc.)

Question 13

Where are the collection of axons with NO cell bodies in the CNS?

Answer 13

Nerves (Spinal, all peripheral nerves, most cranial nerves and dorsal and ventral nerve roots)