Week 1

Question 1

CNS Contain

Answer 1

Brain & Spinal Cord

Question 2

PNS Contain

Answer 2

Cranial Nerves and Spinal Nerves

Question 3

A bundle of intersecting nerves that exit from the spinal cord

Answer 3

Plexus

Question 4

Collection of cell bodies of neurons located in the PNS

Answer 4

Ganglia

Question 5

Collection of somas located in the CNS

Answer 5

Nuclei

Question 6

Axons in the CNS

Answer 6

Tract

Question 7

Axons in the PNS

Answer 7

Nerve

Question 8

Receive incoming signal to neuron

Answer 8

Dendrites

Question 9

Transmit outgoing signal, away from neuron

Answer 9

Axons

Question 10

Structure that generates the signs, that travels down the axon

Answer 10

Axon Hillock

Question 11

Structure that releases neurotransmitter allowing communication with other neurons/ cells

Answer 11

Axon terminals

Question 12

[blank] speeds of electrical impulses

Answer 12

Myelination

Question 13

-Most abundant neuroglia of CNS
-Blood brain barrier
-Promote healing & regeneration

Answer 13

Astrocyte

Question 14

-Resident immune cells
-uses phagocytosis to remove pathogens that cross the blood brain barrier

Answer 14

Microglia

Question 15

Provide myelination and support/protection

Answer 15

Oligodendrocytes (CNS)

Question 16

-Line central cavities of the brain and spinal cord
-Produce and circulate CSF

Answer 16

Ependymal Cells (CNS)

Question 17

Enclose the cells bodies of peripheral neurons and regulate their environment

Answer 17

Satellite cells (PNS)

Question 18

-Form myelin sheaths around the axons of peripheral nerves
-Provides insulation and increases conduction speed
-guide the regrowth of damaged axons

Answer 18

Schwann Cells