M106 Muscular system review

Question 1

A persons ability to survive depends on his or her ability to?

Answer 1

Adapt

Question 2

Skeletal muscle cells appear ______ under a microscope

Answer 2

Bundles

Question 3

Describe the shape of muscle cells

Answer 3

Threadlike and cylindrical

Question 4

Skeletal muscle cells contain multiple

Answer 4

Nuclei

Question 5

Each fine thread found under a microscope is a muscle cell aka

Answer 5

Muscle fiber

Question 6

Which type of muscle tissue is striated and voluntary

Answer 6

Skeletal

Question 7

Which type of muscle tissue has dark bands called intercalated disks

Answer 7

Cardiac

Question 8

Nonstriated muscles are also known as

Answer 8

Smooth muscle

Question 9

Smooth muscle cells are taper at each end, lack striations and have only one _____

Answer 9

Nucleus

Question 10

This kind of muscle is found in blood vessel walls and many hollow organs

Answer 10

Smooth

Question 11

Smooth, nonstriated, involuntary muscle is sometimes called

Answer 11

Visceral

Question 12

Every movement we make involves muscle ____

Answer 12

Contraction

Question 13

A skeletal muscle is an

Answer 13

Organ

Question 14

A skeletal muscle is composed of _______ &________

Answer 14

Striated muscles& connective tissue

Question 15

A muscle attachment to the more stationary bone is its?

Answer 15

Origin

Question 16

A muscle attachment to the more moveable bone is known as the ?

Answer 16

Insertion

Question 17

The body of a muscle is also known as the

Answer 17

Belly

Question 18

_____ anchors muscle to bone

Answer 18

Tendons

Question 19

______ are made of dense fibrous connective tissue

Answer 19

Tendons

Question 20

Small fluid-filled sacs

Answer 20

Bursa

Question 21

These lie between tendon and bone

Answer 21

Bursa

Question 22

These are made of connective tissue& lined with synovial membrane

Answer 22

Bursa

Question 23

A _____ makes it easier for a tendon to slide over a bone when the tendons muscle shortens

Answer 23

Bursa

Question 24

Some tendons are enclosed with _______ ______ tube-shaped structures lined with synovial fluid to facilitate movement

Answer 24

Tendon Sheaths

Question 25

Prefixes meaning muscle

Answer 25

Myo- mys- sarco

Question 26

Each skeletal muscle fiber is filled with 2 kinds of very fine threadlike structures called ______ &________

Answer 26

Thick and thin myofilaments

Question 27

A protein that forms thick myofilaments

Answer 27

Myasin

Question 28

A protein that forms thin myofilaments

Answer 28

Actin

Question 29

The basic functional unit of skeletal muscle

Answer 29

Sarcromere

Question 30

The basic contractile unit of skeletal muscle

Answer 30

Sarcromere

Question 31

The basic building block of compact bone

Answer 31

Osteon

Question 32

These separate sarcomeres from eachother

Answer 32

Z-lines

Question 33

Muscle contraction causes the ____&_____ to slide together and shorten the sarcromere

Answer 33

Mysin&actin

Question 34

______ _____ ______ explains how a skeletal muscle contracts

Answer 34

sliding filament theory

Question 35

For contraction to take place, this mineral must be present

Answer 35

Calcium

Question 36

The energy used for muscle contractions

Answer 36

ATP

Question 37

The primary functions of the muscular system

Answer 37

Heat production, movement, pulling, stability

Question 38

Muscles move bones by ______ them

Answer 38

Pulling

Question 39

When muscles contract they become

Answer 39

Shorter

Question 40

The muscle that is mainly responsible for producing a movement

Answer 40

Prime mover

Question 41

Muscles that Help* produce movement

Answer 41

Synergist

Question 42

Muscle that relaxes when the prime mover contracts

Answer 42

Antagonist

Question 43

These muscles produce the opposite action of the prime mover

Answer 43

Antagonist

Question 44

Type of specialized skeletal muscle contraction for maintaining body position

Answer 44

Tonic contraction

Question 45

In tonic contraction, few muscle fibers shorten at one time resulting in the muscle

Answer 45

Not shortening/moving

Question 46

_____ contraction doesnt move body parts

Answer 46

tonic

Question 47

________ contraction holds muscle in place

Answer 47

Tonic

Question 48

________ ______ maintains posture

Answer 48

Muscle tone

Question 49

Good posture puts less strain on? (multiple answers)

Answer 49

Organs, bone, muscle

Question 50

Good posture favors _____

Answer 50

function

Question 51

Skeletal muscle tone maintains posture by counteracting the pull of _____

Answer 51

Gravity

Question 52

_____ tends to pull the head and truck forward/ down

Answer 52

Gravity

Question 53

A constant ______ ____________ is necessary for survival

Answer 53

Body temprature

Question 54

Healthy human body temp

Answer 54

98.6

Question 55

Condition of low body temp for human

Answer 55

Hypothermia

Question 56

Condition of high body temp for human

Answer 56

Hyperthermia

Question 57

Most of the heat required to maintain body temp is created by

Answer 57

Muscle fiber contraction

Question 58

Muscle cells that are repeatedly stimulated without adequate rest decrease in strength& _____ results

Answer 58

Fatigue

Question 59

Is it possible for a muscle to lose its ability to contract by being overused?

Answer 59

Yes

Question 60

_____ _____ describes the continued increase in metabolism that occurs due to lack of oxygen

Answer 60

Oxygen debt

Question 61

List some other body systems aside from muscle that play a role in movement

Answer 61

Skeletal, cardiac, nervous

Question 62

Muscle cells are stimulated by a ______ _______ AKA ______ ______

Answer 62

Motor neuron, efferent neuron

Question 63

The point of contact between a nerve ending and a muscle fiber is called?

Answer 63

Neuromuscular junction

Question 64

A single motor neuron and the muscle cell it innervates is called a?

Answer 64

Motor unit

Question 65

___________ is the minimal level of stimulation required to cause a fiber to contract

Answer 65

Threshold

Question 66

Because muscle cells contract completely or not at all its typically referred to as ______ ___ ______ response

Answer 66

All or none

Question 67

A quick jerky response to a stimulus

Answer 67

Twitch

Question 68

A single stimulus & a single response results in a

Answer 68

Twitch

Question 69

______ ______ is produced by a series of stimuli bombarding the muscle in rapid succession

Answer 69

Tetanic contraction

Question 70

_______ _______ results in a muscle spasm/cramp

Answer 70

Tetanic contraction

Question 71

When the muscle changes length and there's movement at the joint its called a ______ contraction

Answer 71

Isotonic

Question 72

Examples of this movement include walking, dancing and breathing

Answer 72

Isotonic contraction

Question 73

This contraction doesn't always produce movement

Answer 73

Isometric

Question 74

Can muscle increase tension but not contract?

Answer 74

Yes

Question 75

Repeated ___ _____ makes muscles grow larger and stronger

Answer 75

isometric contraction

Question 76

Examples of this contraction include pushing on a wall

Answer 76

Isometric

Question 77

Prolonged inactivity in muscles can cause

Answer 77

Disuse, atrophy, muscle weakness

Question 78

Increase in muscle size is known as

Answer 78

Hypertrophy

Question 79

______ training involves contracting muscles against heavy resistance

Answer 79

Strength

Question 80

Strength training results in more _____ not more muscle fibers

Answer 80

myofilaments

Question 81

Movement that decreases the angle of two bones at the joint

Answer 81

flexion

Question 82

Movement that increases the angle of two bones at the joint

Answer 82

Extension

Question 83

Movement toward the midline of the body

Answer 83

Proximal

Question 84

Movement away from the midline of the body

Answer 84

Distol