Chapter 8 Part 1

Question 0

Shortens the muscles and causes movement

Answer 0

Isotonic

Question 1

Slight, constant contraction during consciousness

Answer 1

Tone

Question 2

Increases muscle tension but no movement occurs

Answer 2

Isometric

Question 3

Continuous sustained contraction allowing smooth movement

Answer 3

Tetnus

Question 4

“Stair step” increase in contraction with repeated stimulation before muscle has completely relaxed

Answer 4

Wave

Question 5

Multinucleated muscle tissue

Answer 5

Skeletal

Question 6

Muscle tissue found in blood vessels and stomach

Answer 6

Smooth

Question 7

Voluntary muscle tissue

Answer 7

Skeletal

Question 8

Muscle tissue branched with intercalated discs

Answer 8

Cardiac

Question 9

Spindle-shaped muscle tissue

Answer 9

Smooth

Question 10

Muscle tissue that is cylindrical in shape and is un branched

Answer 10

Skeletal

Question 11

Muscle tissues that are striated

Answer 11

Skeletal

Cardiac

Question 12

Muscle tissues that are involuntary

Answer 12

Cardiac

Smooth

Question 13

Muscle tissue found in the heart

Answer 13

Cardiac

Question 14

Muscle tissue that is un striated

Answer 14

Smooth

Question 15

Muscle tissue usually attached to bones

Answer 15

Skeletal

Question 16

Muscle tissue with the longest individual cells

Answer 16

Skeletal

Question 17

Nonstriated muscle tissue

Answer 17

Smooth

Question 18

Does the length of the actin and myosin filaments change during contraction

Answer 18

No

Question 19

This is essential for maintaining posture

Answer 19

Muscle tone

Question 20

The third phase or period of a muscle twitch contraction

Answer 20

Relaxation period

Question 21

These structures in the enlarged bulb of an axon provide energy to make ACh

Answer 21

Mitochondria

Question 22

State of limpness in which muscle tone is lost

Answer 22

Flaccid

Question 23

The cytoplasm of a muscle fiber

Answer 23

Sacroplasm

Question 24

This tissue is responsible for most of the heat production going on In our body

Answer 24

Muscle

Question 25

Skeletal muscles have a good blood supply

Answer 25

True

Question 26

Skeletal muscles have a good nerve supply

Answer 26

True

Question 27

All the muscle fibers In a motor unit must contract or relax together

Answer 27

True

Question 28

The movement of these ions from outside the sarcolemma to inside causes an action potential to begin to move along

Answer 28

Sodium ions

Question 29

These ions are necessary to trigger muscles contraction

Answer 29

Calcium ions

Question 30

Dietary supplement that some studies show 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 anaerobic process provides enough energy for 30-40 seconds of maximal activity

Answer 32

Glycolysis

Question 33

Connective tissue that attaches 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 aerobic production of energy for muscle contraction

Answer 36

Oxygen

Question 37

Another name for muscle cells

Answer 37

Fibers

Question 38

The cell membrane of Muscle cells

Answer 38

Sarcolemma

Question 39

Alternate light and dark bands running through the sarcoplasm of a muscle cell

Answer 39

Striations

Question 40

A single nerve fiber and the muscle fibers it supples

Answer 40

Motor unit

Question 41

A chemical necessary to transfer the nerve impulse to stimulate the Muscle

Answer 41

Acetylcholine

Question 42

The time between the application of a stimulus and the actual shortening of a muscle

Answer 42

Latent period

Question 43

Two types of skeletal muscle contractions needed for normal body movements

Answer 43

Isotonic | Tetanus

Question 44

The connection between a nerve fiber and a muscle fiber

Answer 44

Neuromuscular junction

Question 45

A brief contraction of all muscle fibers of a motor unit in response to a single stimulus

Answer 45

Twitch contraction

Question 46

Most of ca2+ is found here when a muscle fiber is relaxed

Answer 46

Sarcoplasmic reticulum

Question 47

A stiffening of the muscles after death due to ca+2 leaking out of the Sarcoplasmic reticulum

Answer 47

Rigor mortis

Question 48

The neurotransmitter released from the synaptic vesicles of neurons supplying skeletal muscle

Answer 48

Acetylcholine

Question 49

The thick myofilament that had enlarged heads to form cross bridges

Answer 49

Myosin