Chapter 10 study guide intro muscles

Question 1

1

Answer 1

Thin Filament

Question 2

2

Answer 2

Thick Filament

Question 3

3

Answer 3

Z disc

Question 4

4

Answer 4

H zone

Question 5

6

Answer 5

I band

Question 6

7

Answer 6

A band

Question 7

8

Answer 7

M line

Question 8

muscle types

Answer 8

skeletal

cardiac

smooth

Question 9

skeletal muscle

Answer 9

voluntary

striated

attached to bones

multi-nucleated

Question 10

cardiac muscle

Answer 10

involuntary

striated

intercolated discs

Question 11

smooth muscle

Answer 11

involuntary

nonstriated

cells fusiform in shape

Question 12

muscle tissue funtions

Answer 12

movement

stability of body

control of passages and openings

heat production

glycemic control

Question 13

muscle properties

Answer 13

excitability

conductivity

contractility

extensibility

elasticity

Question 14

muscle structure

1

Answer 14

fascia

Question 15

muscle structure

2

Answer 15

epimysium

Question 16

muscle structure

3

Answer 16

perimysium

Question 17

muscle structure

4

Answer 17

fascicles

Question 18

muscle structure

5

Answer 18

endomysium

Question 19

muscle structure

6

Answer 19

muscle fiber

Question 20

muscle fiber

1

Answer 20

Nucleus

Question 21

muscle fiber

2

Answer 21

Mitochondria

Question 22

muscle fiber

3

Answer 22

myofibrils

Question 23

muscle fiber

4

Answer 23

myofilaments

Question 24

muslce fiber

5

Answer 24

Sarcolemma

Question 25

muscle fiber

6

Answer 25

transverse tubule

Question 26

muscle fiber

7

Answer 26

transverse cisternae

Question 27

muscle fiber

8

Answer 27

sarcoplasmic reticulum

Question 28

muslce to bone attachments

Answer 28

indirect

direct

Question 29

indirect attachment

Answer 29

attach via fibrous tendons

Question 30

direct attachment

Answer 30

muscle fibers extend nearly to bone surface and muscle fibers connect directly to periosteum

Question 31

muscle groups

Answer 31

prime movers

synergist

antagonist

fixator

Question 32

prime movers

Answer 32

muscle that produces the most force

Question 33

synergists

Answer 33

muscles that assist prime mover

Question 34

antagonist

Answer 34

muscle that opposes prime mover

Question 35

fixator

Answer 35

muscle that holds bone still

Question 36

intrinsic muscles

Answer 36

boht origin and insertion are within specified region

head

hand

Question 37

extrinsic muscles

Answer 37

origin is outside of the region

insertion is in the region of movement

Question 38

stiations of muscle

Answer 38

due to the arrangement of bands within the sarcomere

Question 39

motor neuron relationship

Answer 39

connection is the neuromuscular junction

nerve impulse causes muscle contraction

by release of acetylcholine

Question 40

neuromuscular junction

Answer 40

synaptic knob nestles in depression of the sarcolemma

the synaptic cleft separates the to from actual contact

Question 41

motor unit

Answer 41

single nerve fiber and all muscle fibers innervated by it

Question 42

motor unit significance

Answer 42

allows precise control over muscle contractoin to allow just enough contraction to perform the task