CHAPTER 2

Question 1

the first striking characteristic of of the human nervous system is that it is remarkably ________

Answer 1

top heavy

Question 2

_____ are specialized biological cells in the central nervous system (CNS) and the peripheral nervous system (PNS)

Answer 2

neurons

Question 3

neurons primary processes are _____ and _____

Answer 3

information processing (computing)
transmittal

Question 4

how many neurons are in the human brain? (approx.)

Answer 4

100 billion

Question 5

_____ refers to the same sides

Answer 5

ipsilateral

Question 6

_____ refers to opposite sides

Answer 6

contralateral

Question 7

the _______ distance is near (start of the limb)

Answer 7

proximal

Question 8

the ______ distance is far (end of arm or leg at hands or toes)

Answer 8

distal

Question 9

____ protect neurons from pathogens and clean out dead neurons

Answer 9

glia

Question 10

______ help modulate and regulate neural activity

Answer 10

glia

Question 11

\_\_\_\_\_\_\_\_\_\_ cells provide structural support for neuron, provide nutrients, and modulate neural activity
through reuptake of
neurotransmitters and
regulation of ion
concentration.

Answer 11

astrocytes and satellite

Question 12

__________ cells wrap axons in myelin to insulate them and speed conduction of action potentials

Answer 12

OLIGODENDROCYTES

& SCHWANN CELLS

Question 13

______ cells help reproduce and circulate cerebrospinal fluid

Answer 13

ependymal

Question 14

_____ are macrophages that devour and digest cellular debris (phagocytosis)

Answer 14

microglia

Question 15

\_\_\_\_\_ = back 
\_\_\_\_\_ = belly
\_\_\_\_\_ = nose
\_\_\_\_\_ = tail
\_\_\_\_\_ = above
\_\_\_\_\_ = below
\_\_\_\_\_\_ = before
\_\_\_\_\_\_ = after

Answer 15

dorsal
ventral
rostral
caudal
superior
inferior
anterior
posterior