The Muscular System Test Cards

Front 1

3 basic types of muscles

Back 1

Skeletal,cardiac,& smooth

Front 2

Muscle cell

Back 2

Muscle fiber

Front 3

Myo and mys

Back 3

Muscle

Front 4

Sarco

Back 4

Flesh

Front 5

Striated

Back 5

Have visible banding

Front 6

Voluntary

Back 6

Subject to conscious control

Front 7

Involuntary

Back 7

Subject to unconscious control

Front 8

Endomysium

Back 8

Encloses a single muscle fiber

Front 9

Perimysium

Back 9

Wraps around a fasicle of muscle fibers.

Front 10

Epimysium

Back 10

Covers the entire skeletal muscle

Front 11

Fascia

Back 11

On the outside of the epimysium.

Front 12

Tendons

Back 12

Cordlike structures

Front 13

Apeurneuroses

Back 13

Sheetlike structures.

Front 14

Sacolemma

Back 14

Specialized plasma membrane

Front 15

Myofibrils

Back 15

Are aligned to give distinct bands

Front 16

I band

Back 16

Light band

Front 17

A band

Back 17

Dark band

Front 18

Sarcomere

Back 18

Contractile unit of a muscle fiber organization of the fiber.

Front 19

The thick filaments

Back 19

Myosin filaments

Front 20

Thin filaments

Back 20

Actin filaments

Front 21

Motor unit

Back 21

One motor neuron.

Front 22

Neuromuscular junction

Back 22

Association site of axon terminal of the motor neuron & muscle

Front 23

Synaptic cleft

Back 23

Gap between nerve and muscle

Front 24

Neurotransmitter

Back 24

Chemical released by nerve upon arrival of the nerve impulse

Front 25

ACH

Back 25

Acedaline

Front 26

Graded responses

Back 26

Different degrees of skeletal muscle shortning

Front 27

Twitch

Back 27

Single,brief contraction

Front 28

Tetanus

Back 28

Summing of contractions

Front 29

Unfused

Back 29

Incomplete tetanus

Front 30

Fused

Back 30

Complete tetanus

Front 31

Isotonic contractions

Back 31

Myofilaments are able to slide past each other during contractions.

Front 32

Isometric contractions

Back 32

Tension in the muscles increases.

Front 33

With a few exceptions

Back 33

All skeletal muscles cross at least one joint.

Front 34

Typically,

Back 34

the bulk of a skeletal muscle lies proximal to the joint crossed.

Front 35

All skeletal muscles

Back 35

Have at least two attachments,the origin and insertion

Front 36

Skeletal muscles

Back 36

Can only pull;they never push

Front 37

During contraction,

Back 37

a skeletal muscle insertion moves toward the origin

Front 38

Prime mover

Back 38

Muscle with the mirror responsibilty

Front 39

Antagonist

Back 39

Muscle that opposes or reverses a prime mover

Front 40

Synergist

Back 40

Muscle that aids a prime mover.

Front 41

Fixator

Back 41

Stabilizes the origin of a prime mover

Front 42

Subcutaneous

Back 42

Under the skin

Front 43

Intramuscular

Back 43

Shoulder,hip,knee

Front 44

Smooth

Back 44

Stripes

Front 45

Cardiac

Back 45

Breaks off with one nuclei