Chapter 10

Question 1

Excitability

Answer 1

ability to respond to stimuli

Question 2

Conductivity

Answer 2

to transmit electrical events along cell membrane

Question 3

Contractility

Answer 3

generate tension & shorten cell length

Question 4

Elasticity

Answer 4

ability to return to resting length

Question 5

Extensibility

Answer 5

stretched beyond resting length

Question 6

Sarcolemma

Answer 6

plasma membrane
found around muscle bundle

Question 7

sarcoplasma

Answer 7

cytoplasm

Question 8

sarcoplasmic reticulum

Answer 8

smooth ER

Question 9

Sarcomere

Answer 9

contracting unit muscle fiber, has a string of sarcomere to cause contraction in muscle

Question 10

Motor unit

Answer 10

used to prevent fatigue
single motor neuron contains only some muscle fibers

Question 11

part of MYOFRIBRILS

Answer 11

Z-line
Thin filament
Thick filament
Sarcomere

Question 12

Sarcomere

Answer 12

Actin & Myosin

Question 13

Muscles ___ contract w/o any free calcium

Answer 13

CANNOT

Question 14

calcium is stored in the

Answer 14

SARCOPLASMIC RETICULUM

Question 15

____ causes calcium to be released

Answer 15

ACTION POTENTIONAL

Question 16

___ chemical messenger transmits electrical impulse

Answer 16

ACH