Nervous System Vocab

Question 1

Ependymal

Answer 1

Line brain cavities, aid in CSF circulation

Question 2

Microglia

Answer 2

CNS protection, remove dead tissue

Question 3

Oligodendrocyte

Answer 3

CNS, makes myelin

Question 4

Schwann Cell

Answer 4

Makes myelin in PNS

Question 5

Astrocyte

Answer 5

Found in brain and cord, glue, support cells

Question 6

Bipolar neuron

Answer 6

Transmits impulses to the brain or spinal cord

Question 7

Unipolar neuron

Answer 7

Transmits impulses to the body from the brain and spinal cord

Question 8

Multipolar neuron

Answer 8

Conducts impulses from sensory to motor neurons

Question 9

Myelin sheath

Answer 9

Segmented wrapping around nerve fiber, insulation

Question 10

Neurilemma

Answer 10

Continuous sheath enclosing myelin sheath of peripheral nerve fibers

Question 11

Nerve

Answer 11

Bundle of myelinated fibers outside brain and spinal cord

Question 12

Tracy

Answer 12

Bundle of myelinated fibers in brain and spinal cord

Question 13

Gray matter

Answer 13

Cluster of cells, gray in color

Question 14

White matter

Answer 14

Myelin (fat) insulation

Question 15

Nodes of Ranvier

Answer 15

Gaps in myelin sheath

Question 16

CNS

Answer 16

Central nervous system, brain & spinal cord

Question 17

Reflex arc

Answer 17

the nerve pathway involved in a reflex action including at its simplest a sensory nerve and a motor nerve with a synapse between.

Question 18

Saltitory conduction

Answer 18

How it jumps down the axon

Question 19

Stimulus

Answer 19

What creates an impulse

Question 20

Synapse

Answer 20

Where they make the jump from one end to another

Question 21

Synaptic knob

Answer 21

At the end of the axon; has vesicles

Question 22

Synaptic vessels

Answer 22

Inside the knob; has neurotransmitter substances

“Bouton Terminale”