Final Exam: Ch. 8

Question 0

Isometric contraction

Answer 0

Muscle not moving

Question 1

Number of muscles in human body

Answer 1

600-700

Question 2

Isotonic contraction

Answer 2

Muscle moving

Question 3

A muscle with four origins

Answer 3

Quadriceps

Question 4

A chronic disorder of muscles involving fatigue and ptosis

Answer 4

Myasthenia gravis

Question 5

One of the two types of protein filaments needed for muscle contraction, the thicker of the two and has paddles or cross bridges attached to it

Answer 5

Myosin

Question 6

A muscle that opposes a certain movement

Answer 6

Antagonist

Question 7

A compound that stores oxygen in muscle cells

Answer 7

Myoglobin

Question 8

A muscle with three origins

Answer 8

Triceps

Question 9

The place where a nerve and muscle meet

Answer 9

Neuromuscular junction

Question 10

The wasting away of muscles from lack of use

Answer 10

Atrophy

Question 11

An ion needed for muscle contraction, moves troponin and trope myosin out of the way

Answer 11

Calcium

Question 12

A substance produced when muscles function without oxygen

Answer 12

Lactic acid

Question 13

Any chemical that carries a nerve impulse across a synapse

Answer 13

Neurotransmitter

Question 14

A cord of connective tissue that attaches a muscle to a bone

Answer 14

Tendon

Question 15

The end of a muscle attached to a more fixed, more medial part of the body

Answer 15

Origin

Question 16

The muscle that produces a given movement

Answer 16

Prime mover

Question 17

Referring to fibers that run straight

Answer 17

Rectus

Question 18

The end of a muscle attached to a bone that is put into motion, the more lateral or distal attachment

Answer 18

Insertion

Question 19

A term for any muscle pain

Answer 19

Myalgia

Question 20

A muscular partition between the thoracic and abdominal cavities

Answer 20

Diaphragm

Question 21

The ability of a muscle to contract

Answer 21

Contractility

Question 22

The ability of a muscle to carry nerve impulse

Answer 22

Excitability

Question 23

A compound that. Am be used to donate phosphate group to ATP to make energy

Answer 23

Creating phosphate

Question 24

Referring to fibers that run diagonally

Answer 24

Oblique

Question 25

A spreading wave of electrical current that allows a muscle to contract

Answer 25

Action potential

Question 26

The main neurotransmitter involved in muscle contraction

Answer 26

Acetylcholine

Question 27

A single neuron and the muscle fibers to which it is attached

Answer 27

Motor unit

Question 28

Store neurotransmitters in neurons

Answer 28

Vesicles

Question 29

Another term for the deep fascia, covers the entire muscle

Answer 29

Epimysium

Question 30

The prefix that means muscle

Answer 30

Myo

Question 31

The theory that explains how muscles contract

Answer 31

Sliding filament

Question 32

The molecule that provides energy for the contraction of muscle cells

Answer 32

Atp

Question 33

The molecule that stores glucose in muscle cells

Answer 33

Glycogen

Question 34

The tiny space between a muscle and a nerve cell

Answer 34

Synaptic cleft

Question 35

The action that takes place in all muscles

Answer 35

Pull

Question 36

The increase in the size of a muscle

Answer 36

Hypertrophy

Question 37

Muscle that steady body parts and assist the prime mover

Answer 37

Synergist

Question 38

A muscle with two origins

Answer 38

Biceps

Question 39

A serious injury involving the tearing of ligaments usually as a result so abnormal or excessive movement

Answer 39

Sprain

Question 40

A common injury involving overuse and over stretching of muscles resulting in pain, stiffness and swelling

Answer 40

Strain

Question 41

A term that means without oxygen

Answer 41

Anaerobic