Ch. 7 The Nervous System

Question 1

Demonstrate irritability and conductivity, and thus transmit electrical messages from one area of the body to another area

Answer 1

neurons

Question 2

Release neurotransmitters

Answer 2

neurons

Question 3

Are amitotic (no mitosis)

Answer 3

neurons

Question 4

Able to divide, therefore are responsible for most brain neoplasms (tumors)

Answer 4

neuroglia

Question 5

Star shaped cell, BBB (blood brain barrier) protects from harmful substances

Answer 5

Astrocyte

Question 6

Spider shaped cell, phagocyte (cell that eats dead brain cells)

Answer 6

Microglial cell

Question 7

Lines brain & spinal cord, circulates cerebral spinal fluid

Answer 7

Ependymal cell

Question 8

Produces a fatty insulating material (myelin sheath) **CNS

Answer 8

Oligodendrocyte

Question 9

Produces a fatty insulating material (myelin sheath) **PNS

Answer 9

Schwann cell

Question 10

Support, insulate, and protect cells

Answer 10

neuroglia

Question 11

Reflex arc order

Answer 11

Afferent, interneuron, efferent

Question 12

supporting cells in the CNS

Answer 12

neuroglia