Lab 1: Overview of the Nervous and Skeletal Systems

Question 1

System of interconnecting canal in the microscopic structure of adult compact bone; unit of bone

Answer 1

Osteon; Haversian System

Question 2

Extremely small tubular passage

Answer 2

Canilliculi

Question 3

Bone forming cells

Answer 3

osteoblast

Question 4

large cells that reabsorbed or breakdown bone matrix

Answer 4

osteoclast

Question 5

internal layer of skeletal bone; cancellous bone

Answer 5

spongy bone

Question 6

sharp, slender process

Answer 6

spine

Question 7

small rounded projection

Answer 7

tubercle

Question 8

narrow ridge of bone

Answer 8

crest

Question 9

large rounded projection

Answer 9

tuberosity

Question 10

structure supported on neck

Answer 10

head

Question 11

armlike projection

Answer 11

ramus

Question 12

rounded, articular projection

Answer 12

condyle

Question 13

narrow opening

Answer 13

fissure

Question 14

canal-like structure

Answer 14

meatus

Question 15

round or oval opening through a bone

Answer 15

foramen

Question 16

shallow depression

Answer 16

fossa

Question 17

air-filled cavity

Answer 17

sinus

Question 18

large, irregularly shaped projection

Answer 18

trochanter

Question 19

raised area on or above a condyle

Answer 19

epicondyle

Question 20

projection or prominence

Answer 20

process

Question 21

smooth, nearly flat articular surface

Answer 21

facet

Question 22

cell of nervous system specialized to generate and transmit electrical signals

Answer 22

neuron

Question 23

a type of CNS supporting cell that composes myelin sheaths

Answer 23

oligodendrocyte

Question 24

a type of CNS supporting cell; assists in exchanges between blood capillaries and neurons

Answer 24

astrocyte

Question 25

gray area of the central nervous system; contains neuronal cell bodies and their dendrites

Answer 25

Gray (grey) matter

Question 26

white substance of the central nervous system; myelinated nerve fibers

Answer 26

white matter

Question 27

collection of nerve cell bodies

Answer 27

ganglion

Question 28

brain and spinal cord

Answer 28

central nervous system

Question 29

portion of nervous system consisting of nervous and ganglia that lie outside of the brain and spinal cord

Answer 29

peripheral nervous system

Question 30

efferent division of the peripheral nervous system that innervates cardiac and smooth muscles and glands; also called the involuntary or visceral motor system

Answer 30

autonomic nervous system

Question 31

a large transient depolarization event including polarity reversal. that is conducted along the membrane of a muscle cell or a nerve fiber

Answer 31

action potential

Question 32

a bundle of axon in the peripheral nervous system

Answer 32

nerve

Question 33

carrying away or away from, especially a nerve fiber that carries impulses away from the central nervous system

Answer 33

efferent

Question 34

carrying to or toward a center

Answer 34

afferent

Question 35

pertaining to an internal organ of the body or the inner part of the structure

Answer 35

visceral

Question 36

biosynthetic center of the neuron and its receptive region

Answer 36

cell body

Question 37

receptive regions that bear receptors for neurotransmitters released by axon terminal

Answer 37

dendrites

Question 38

special support cells

Answer 38

schwann cells

Question 39

impulse generating and conduction region

Answer 39

axon

Question 40

form synapses with neurons or effector cells

Answer 40

axon terminals