Chapter 8 test

Question 1

Slight, constant contraction during consciousness

Answer 1

Tone

Question 2

Shortens the muscles and causes movements

Answer 2

Isotonic

Question 3

Increases muscle tension but no movement occours

Answer 3

Isometric

Question 4

continuous sustaned contraction allowing smooth movement

Answer 4

tetanus

Question 5

“staistep” increase in contraction with repeated stimulation before muscle relaxed

Answer 5

sommation

Question 6

Name the type(s) of muscle tissue described:

Multinucleated

Answer 6

Skeletal

Question 7

Name the type(s) of muscle tissue described:

Found in blood vesceles and stomache

Answer 7

smooth

Question 8

Name the type(s) of muscle tissue described:

Voluntary

Answer 8

skeletal

Question 9

Name the type(s) of muscle tissue described:

Branced with interlaced discs

Answer 9

Cardiac

Question 10

Name the type(s) of muscle tissue described:

spindle-shaped

Answer 10

smooth

Question 11

Name the type(s) of muscle tissue described:

cylindrical in shape, unbranched

Answer 11

skeletal

Question 12

Name the type(s) of muscle tissue described:

Striated

Answer 12

Skeletal and cardiac

Question 13

Name the type(s) of muscle tissue described:

involuntary

Answer 13

Smooth and cardiac

Question 14

Name the type(s) of muscle tissue described

Found in heart

Answer 14

Cardiac

Question 15

Name the type(s) of muscle tissue described:

Unstriated

Answer 15

smooth

Question 16

Name the type(s) of muscle tissue described:

usually attached to bones

Answer 16

skeletal

Question 17

Name the type(s) of muscle tissue described:

longest individual cells

Answer 17

Skeletal

Question 18

Name the type(s) of muscle tissue described:

non-striated

Answer 18

smooth

Question 19

Does the length of actin and mysin filaments change during muscle contraction

Answer 19

NO

Question 20

this is essential for maintaining posture

Answer 20

tone

Question 21

the third phase (period) of a muscle twitch contraction

Answer 21

relaxation

Question 22

these structures in the inlarged bulb of an axon provides energy to to make ask

Answer 22

mitochondria

Question 23

state of limpness in witch muscle tone is lost

Answer 23

Flaccid

Question 24

the cytoplasm of a muscle fiber

Answer 24

sacroplasm

Question 25

this tissue is resonsible foe most of the heat production going on in our body

Answer 25

muscle tissue

Question 26

Skelatal muscles have a _____ blood supply and a ____ nerve supply

Answer 26

Good/Good

Question 27

all of the muscle fibers in a ____ must conract or relax together

Answer 27

motor unit

Question 28

the motment of these ions from outside the sarcolemma to inside the inside causes a action potential to begin to move along

Answer 28

sodium ions

Question 29

these ions are nessasary to trigger muscle contraction

Answer 29

calcium ions

Question 30

dietary supplement that some studies shoe may result in more lifting power

Answer 30

creatine

Question 31

the storage form of glucose in our liver and muscles

Answer 31

glycogen

Question 32

this is annarobic process provides enough energy for 30-40 seconads of maxiamal activity

Answer 32

glycolysis

Question 33

conective tissue that attatches muscle to bone

Answer 33

tendon

Question 34

the source of energy for muscle contraction

Answer 34

ATP

Question 35

another name for an action potential

Answer 35

Nerve impulse

Question 36

This is required by mitochondria in the arobic production of energy for muscle contraction

Answer 36

oxygyn

Question 37

another name for muscle cells

Answer 37

fibers

Question 38

the cell membrane of muscle cells

Answer 38

sarcolemna

Question 39

atranate light and dark bands running thought the sacroplam of a muscle cell

Answer 39

striations

Question 40

a single nerve fiber and the muscle fibers it supplies

Answer 40

motor unit

Question 41

a chemical nessacary to transpher the nerve impulse to stimulate the muscle

Answer 41

ACH

Question 42

the time between the application of a stimulus and the actual shortning of the muscle

Answer 42

lanent period

Question 43

two types of skeletal muscle contractions needed for normal body movements

Answer 43

isotenic tetanus

Question 44

the connection between a nerve fiber and muscle fiber

Answer 44

neromuscular junctic

Question 45

a brief contraction of all muscle fibers of a motoe unit in response to a single stimulous

Answer 45

twitch

Question 46

Most of the Ca+2 is found here when a fuscle fiber is relaxed

Answer 46

sacroplatonic reticulum

Question 47

A stiffening of the muscles after death due to Ca+2 leaking out of the sarcoplasmic reticulum

Answer 47

rigamortis

Question 48

Name the major functions of muscles

Answer 48

movement

Question 49

the neurtransmitter released from the synptic vescles of neurons supplying skeletal muscle

Answer 49

ACH

Question 50

the thick myofillament that has inlargeed heads to form cross bridges

Answer 50

myosin