Ch 8 Anatomy

Question 1

Movement caused by muscle cells is called

Keyword C

Answer 1

Contraction

Question 2

The 3 types of muscle tissue in the body

Answer 2

Skeletal, cardiac, smooth

Question 3

Muscle movement occurs when

Keyword M

Answer 3

Chemical energy is coming is converted into mechanical energy

Question 4

Skeletal muscle is also called

Keyword s and muscle

Answer 4

Striated or voluntary muscle

Question 5

Skeletal muscle contractions can be

Key word C

Answer 5

Voluntarily controlled

Question 6

Each fine thread is a muscle cell, usually called a

Keyword muscle

Answer 6

Muscle fiber

Question 7

What is visible Under a microscope

Answer 7

Crosswise stripes or striations

Question 8

Cardiac muscles composes

Key word another name for cardiac

Answer 8

The bulk of the heart

Question 9

Cardiac muscle fibers are

Answer 9

Branched

Question 10

Cardiac muscles fibers have dark bands called

Keyword D

Answer 10

Intercalated disks

Question 11

The interconnections of cardiac muscle fibers allow the heart to

Keyword C

Answer 11

Contract as a unit

Question 12

Nonstriated muscle is also called

Answer 12

Smooth or visceral muscle

Question 13

What muscle lacks striations when seen under a microscope; appears smooth

Answer 13

Nonstriated muscle

Question 14

What muscle is found in the walls of hollow structures such as digestive tract, blood, and vessels

Keyword s

Answer 14

Nonstriated muscle

Question 15

Contractions are not under

Keyword C

Answer 15

Voluntary control

Question 16

All muscle fibers specialize in

Answer 16

Contraction

Question 17

Muscle organs consist mainly of

Keyword muscle

Answer 17

Striated muscle fibers and connective tissue

Question 18

Connective tissue forms

Answer 18

Wrappers around each muscle fiber, around fascicles of muscle fibers, and around the entire muscle

Question 19

Most skeletal muscles extend from

Answer 19

One bone across a joint to another bone

Question 20

The muscles attachment to this more stationary bone is called it’s

Answer 20

Origin

Question 21

It’s attachment to the movable bone is called

Answer 21

Insertion

Question 22

Main part of the skeletal muscle

Answer 22

Body

Question 23

Muscles are attached to bones by

Keyword attached

Answer 23

Tendons

Question 24

Tendons are

Word T

Answer 24

Strong cord or sheets of fibrous connective tissue

Question 25

Some tendons are enclosed in | Keyword S

Answer 25

Synovium lined tubes and are lubricated by synovial fluid

Question 26

Bursae is | Keyword S

Answer 26

Small synovium lines sacs containing small amounts of synovial fluid

Question 27

Contractile cells are called

Answer 27

Muscle fibers

Question 28

Thick myofilaments contain | Keyword word myo

Answer 28

Myosin

Question 29

Thin myofilaments contain

Answer 29

Actin

Question 30

Basic functional units called sarcomeres are separated from each other by dark bands called

Answer 30

Z lines

Question 31

Thick and thin myofilaments slide past each other to

Answer 31

Contract

Question 32

Contraction requires | Keyword C

Answer 32

Calcium and energy rich ATP molecules

Question 33

Muscle produce movement by | Keyword muscle

Answer 33

Pulling on bones as a muscle contracts

Question 34

The insertion bone is pulled closer to the | Keyword sort of rhymes with insertion

Answer 34

Origin bone

Question 35

Movement occurs at the joint between the

Answer 35

Origin and insertion

Question 36

Prime mover is | Keyword m

Answer 36

The main muscle responsible for producing a given movement

Question 37

Synergist

Answer 37

Helps the prime mover produce a given moment

Question 38

Antagonist

Answer 38

Opposes the action of a prime mover in any given moment

Question 39

A continuous low strength muscle contraction is called | Keyword Muscle contraction

Answer 39

Tonic contraction (muscle tone)

Question 40

Skeletal muscle tone maintains good posture by

Answer 40

Counteracting the pull of gravity

Question 41

Survival depends on the body’s ability to maintain a stable | Keyword body

Answer 41

Body temperature

Question 42

What 4 systems play essential roles in producing normal movements

Answer 42

Respiratory, circulatory, nervous, muscular and skeletal systems

Question 43

MS, brain hemorrhage and spinal cord injury are examples of how

Answer 43

Pathological conditions in other body organs systems can dramatically affect movement

Question 44

Motor neuron is a | Keyword neuron

Answer 44

Nerve cell that transmits an impulse to a muscle, causing contraction

Question 45

A muscle will contract only if an

Answer 45

Applied stimulus reaches a certain level of intensity

Question 46

Most type of body movements are produced by

Answer 46

Isotonic contractions

Question 47

Twitch contraction are

Answer 47

Laboratory phenomena, not normal muscle cavity

Question 48

Tonic contractions are Keyword contraction

Answer 48

Sustained muscular contractions

Question 49

An isotonic contraction

Answer 49

Causes a muscle to change length and produce movement at a joint

Question 50

A concentric contraction

Answer 50

Causes a muscle to shorten

Question 51

An eccentric contraction

Answer 51

Causes a muscle to lengthen under tension

Question 52

Isometric contraction do NOT produce

Answer 52

Movement

Question 53

Regular exercise increases muscle size, this is called Keyword increase

Answer 53

Hypertrophy

Question 54

4 types of angular movements

Answer 54

Flexion Extension Abduction Adduction

Question 55

Hand positions that result from rotation of the forearm

Answer 55

Supination and pronation

Question 56

3 facial muscles

Answer 56

Orbicularis oculi Orbicularis oris Zygomaticus

Question 57

Muscles of mastication

Answer 57

Masseter, temporal muscle

Question 58

Sternocleidomastoid

Answer 58

Flexes and rotates Neck

Question 59

Trapezius

Answer 59

Elevates shoulders and extends head