Chapter 6: Vocabulary For Quiz

Question 1

increases angle between two bones

Answer 1

extension

Question 2

thick filaments

Answer 2

myosin

Question 3

movement of a limb away from the midline

Answer 3

abduction

Question 4

single, brief contraction

Answer 4

twitch

Question 5

muscle that aids a prime mover in a movement and helps prevent rotation

Answer 5

synergist

Question 6

muscle with the major responsibility for a certain movement

Answer 6

prime mover

Question 7

movement of a limb toward the midline

Answer 7

adduction

Question 8

thin filaments

Answer 8

actin

Question 9

movement of a bone around its longitudinal axis

Answer 9

rotation

Question 10

forearm rotates laterally so palm facer anteriorly

Answer 10

supination

Question 11

some relaxation occurs between contractions

Answer 11

unfused tetanus

Question 12

brings two bones closer together

Answer 12

flexion

Question 13

contraction where the muscle shortens and movement occurs

Answer 13

isotonic contractions

Question 14

motor neuron and all the skeletal muscle cells stimulated by that neuron

Answer 14

motor unit

Question 15

association site of axon terminal of the motor neuron and muscle

Answer 15

neuromuscular junction

Question 16

forearm rotates medically so palm faces posteriorly

Answer 16

pronation

Question 17

contraction where the muscle is unable to shorten or produce movement

Answer 17

isometric contractions

Question 18

ability to recoil and resume resting length after stretching

Answer 18

elasticity

Question 19

ability of muscle cells to be stretched

Answer 19

extensibility

Question 20

ability to respond to stimuli

Answer 20

excitability

Question 21

no relaxation before the following contractions

Answer 21

fused tetanus

Question 22

dark band- the entire length of the thick filament

Answer 22

A band

Question 23

muscle that opposes or reverses a prime mover

Answer 23

antagonists

Question 24

ability to shorten when an adequate stimulus is received

Answer 24

contractility

Question 25

light band- contains only thin filaments

Answer 25

I band