Chapter 4

Question 1

abundant start shaped cells that form barrier between capillaries and neurons; control chemical environment of brain

Answer 1

astrocyte

Question 2

phagocytose bacterial cells and celllular debris in the CNS

Answer 2

microglia

Question 3

line cavities of brain and spinal cord; circulate cerebrospinal fluid

Answer 3

ependymal cells

Question 4

wrap up nerve fiber axons in the CNS; produce myelin sheath

Answer 4

oligodendrocytes

Question 5

form myelin sheaths around nerve fibers in the PNS

Answer 5

schwann cells

Question 6

act as protective, cushioning cells for the peripheral neuron cell bodies

Answer 6

satellite cells

Question 7

type of cell motor and associated neurons are; most common structural type

Answer 7

multipolar

Question 8

lowest part of brain stem; merges into spinal cord
contains important control center for: heart rate, blood pressure, swallowing/vomiting, breathing

Answer 8

medulla oblongata

Question 9

modifies activity of respiratory centers in medulla

Answer 9

pons

Question 10

reflex center for vision and hearing/ made of nerve fibers

Answer 10

midbrain

Question 11

emotions, regulates secretions of hormones from pituitary gland, helps regulate temp, sleep, water balance, metabolism

Answer 11

hypothalamus

Question 12

relay station for sensory impulses, transfers inpulse to correct localization for interpretation

Answer 12

thalamus

Question 13

regulates skeletal muscle movements

Answer 13

basal nuclei

Question 14

made of thalamus and hypothalamus

Answer 14

diencephalon

Question 15

primary motor area, voluntary control of skeletal muscles, sends impulses; involved in ability to speak; problem solve judge, understand language

Answer 15

frontal lobe

Question 16

receives and interprets impulses from the body’s sensory receptors; involved in speech/language

Answer 16

parietal lobe

Question 17

vision

Answer 17

occipital lobe

Question 18

olfaction/hearing

Answer 18

temporal lobe