Anatomy

Front 1

Excitability

Back 1

Produces an action potential that allows muscles to contract

Front 2

Contractility

Back 2

Ability to shorten

Front 3

Extensibility

Back 3

Ability to stretch without being damaged

Front 4

Elasticity

Back 4

Ability to return to normal state and original length after shortening & stretching

Front 5

Epimysium

Back 5

Dense irregular connective tissue that is the outer wrapping of fascia of muscle

Front 6

Endomysium

Back 6

Sheath of areolar connective tissue that's inside fasicles, separates each fiber from one another

Front 7

Perimysium

Back 7

Dense irregular connective tissue that routes around individual pockets inside muscle called fasicles

Front 8

Sarcolemma

Back 8

Plasma membrane of muscle cell

Front 9

Sarcoplasm

Back 9

The cytoplasm of muscle fiber

Front 10

Sarcoplasmic Reticulum

Back 10

A fluid-filled system of membranous sacs that encircles each myofibril

Front 11

Myofibril

Back 11

Contractile Organelles of skeletal muscle, proteins that make up muscle fibers

Front 12

Actin

Back 12

Thin Filaments main component, anchored to Z discs,contractile protein

Front 13

Myosin

Back 13

Contractile Protein that functions as a motor protein in all types of muscle tissue

Front 14

Elastin

Back 14

A protein that allows tissues to resume shape after stretching or contracting

Front 15

Troponin

Back 15

Reglatory protein that is part of thin filament, holds tropomyosin in place

Front 16

T-Tubule

Back 16

Transverse Tubule, inward extensions of sarcolemma, action potentials travel through them, and they have calcium stored

Front 17

Calmodulin

Back 17

Regulatory protein that binds to Calcium in cytosol and activates myosin light chain kinase

Front 18

Sarcomere

Back 18

Basic functional unit of myofibril. Is the distance between one Z disc to the next.

Front 19

I band

Back 19

Lighter band, thin filaments, go into next sarcomere, composed of actin, troponin, and tropomyosin

Front 20

A Band

Back 20

Dark band, thick filiaments, composed of myosin molecules

Front 21

Z Disc

Back 21

Separates one sacromere from the next

Front 22

Neuromuscular Junction

Back 22

Where a somatic motor neuron and skeletal muscle fiber meet

Front 23

Synaptic Knob

Back 23

Adjacent to the cleft, when nerve impulses reach knob a neurotransmitter is released from vesicle to synapse.

Front 24

Synaptic Cleft

Back 24

Separates 2 cells

Front 25

Myogram

Back 25

A graphic description of velocity and intensity of muscular contraction

Front 26

Muscle Twitch

Back 26

The simplest contraction, a single response to a single stimulus

Front 27

Incomplete Tetanus

Back 27

Caused when a contraction to be iniated when the muscle has only partly relaxed from previous contraction

Front 28

Tetanus

Back 28

Sustained contraction caused by continuous stimulus

Front 29

Treppe

Back 29

We use this to warm up muscles before exercising

Front 30

Muscle Tone

Back 30

Partial contraction of large muscles, particularly to provide posture

Front 31

Isotonic Contraction

Back 31

Tension remains the same but length shortens

Front 32

Isometric Contraction

Back 32

Length remains the same, but tension increases, no work is completed

Front 33

List 5 Functions of MUSCULAR TISSUE

Back 33

1. Movement
2. Posture
3. Body Heat
4. Storing and moving substances within the body

Front 34

Types of Fasicles

Back 34

Parallel
Pennate
Bipennate
Unipennate
Multipennate
Covergent
Circular

Front 35

Parallel

Back 35

Muscle is usually linear in shape. Ex: Sternocleidomastoid

Front 36

Pennate

Back 36

Fair-like in arrangement, a central tendon in muscle with fasicles extending out like a feather.

Front 37

Uni Pennate

Back 37

Arranged on 1 side. EX: Extensor Digitorum Longus

Front 38

Multipennate

Back 38

Attach obliquely from many directions. Ex: Deltoid

Front 39

Convergent

Back 39

Triangular in shape, fasicles come to a shape. Ex: Pectoralis Major

Front 40

Flexor

Back 40

Muscles that bend or flex a joint

Front 41

Extensor

Back 41

Muscles that extend or straighten a joint

Front 42

Abductor

Back 42

Muscles that move a body part away from the midline

Front 43

Adductor

Back 43

Muscles that move a body part towards the midline

Front 44

Rotator

Back 44

Works a pivot joint, rotates a bone around its longitudinal axis

Front 45

Supinator

Back 45

Turns palms anteriorly

Front 46

Pronator

Back 46

Turns palms posteriorly

Front 47

Bicep-

Back 47

2 Heads

Front 48

Brachion-

Back 48

Arm

Front 49

Bucc-

Back 49

Trumpet

Front 50

Cleido-

Back 50

Clavicle

Front 51

Crani-

Back 51

Skull

Front 52

Fascia-

Back 52

Bandage

Front 53

Fibril-

Back 53

Fiber

Front 54

Iso-

Back 54

Equal

Front 55

Mere-

Back 55

Part, segment

Front 56

Oculus-

Back 56

Eye

Front 57

Or-

Back 57

Takes part in

Front 58

Platy-

Back 58

Flat

Front 59

Rectus-

Back 59

Straight

Front 60

Sartor-

Back 60

Tailor

Front 61

Sarx-

Back 61

Flesh

Front 62

Serratus-

Back 62

Jagged

Front 63

Tonic-

Back 63

Tension

Front 64

Which muscle origin is on the scapula and proximal end of humerus dorsally, insertion point olecranon process and the action is extends arm at the elbow?

Back 64

Triceps Brachii

Front 65

Which muscle origin is frontal and maxilla, insertion is tissue of eyelids, and action is squinting?

Back 65

Orbicularis Oculi

Front 66

What muscle origin is the fascia over deltoid and pectoralis major, it's insertion is mandible, and action is pull mandible down and back?

Back 66

Platysma

Front 67

Which muscle origin is clavicle and scapula, insertion is deltoid tuberosity, and action is abduct humerus?

Back 67

Deltoid

Front 68

Which muscle orgin is clavicle, sternum, and upper 6 ribs, insertion is greater tubercle, and action is adducts humerus?

Back 68

Pectoralis Major

Front 69

Which muscle origin is ribs 1-3, insertion is ventral side of scapula, and action is pulls down the scapula?

Back 69

Serratus Anterior

Front 70

Which muscle origin is c7 through T6, insertion is occipital, and action is extends head?

Back 70

Splenius

Front 71

Which muscle origin is zygomatic, insertion is mandible, and action is raises mandible?

Back 71

Masseter

Front 72

Which muscle origin is proximal end of tibia, insertion is calcaneus, and the action is flex the foot?

Back 72

Soleus

Front 73

Which muscle has an origin of lower 8 ribs, the insertion is iliac crest, and the action is twisting side to side?

Back 73

External Oblique

Front 74

Which muscle that forms the abdominal wall is the deepest?

Back 74

Transverse abdominis?