Histology Of Skeletal Muscle

Front 1

Functions of Muscular System

Back 1

Movement
Stabilize joints and maintain posture
Regulate muscle movement of materials
Generate heat to maintain homeostasis

Front 2

A sheet of fibrous connective tissue that surrounds muscles and other oragans

Back 2

Fascia

Front 3

Seperates muscle from skin

Back 3

Superficial fascia

Front 4

Seperates adjacent muscles

Back 4

Deep fascia

Front 5

encircles a whole muscle

Back 5

Epimysium

Front 6

Surrounds bundles of muscle fibers that comprise fascicles

Back 6

Perimysium

Front 7

Separates individual muscle fibers within a fascicle frm one another

Back 7

Endomysium

Front 8

A dense connective tissue that attaces epimysium of muscle to periostium of bone

Back 8

Tendon

Front 9

A broad sheet-like tendon that can attach mscle to bone, another muscle, or skin

Back 9

Aponeurosis

Front 10

Muscle attachment to stationary bone

Back 10

Origin

Front 11

Muscle attachment to mavable bone

Back 11

Insertion

Front 12

muscle that produces most motion

Back 12

Prime mover

Front 13

Mucle that aids movement of prime mover by stailizing or modyfing its action

Back 13

Synergist

Front 14

Muscle that stretches and yields to action of prime mover

Back 14

Antagonist

Front 15

Stabilize orgin of prime mover so that bone doesn't move

Back 15

Fixator

Front 16

ability to respond to stimulus and trigger response

Back 16

Excitability

Front 17

Ability to become shorter and thicker to generate a force to do work

Back 17

Contractility

Front 18

Ability to stretch wthouth damagig tissue

Back 18

Extensibility

Front 19

Abiliy to return to original shape after contration or stertching

Back 19

Elasticity

Front 20

Muscle forming cells

Back 20

Myoblasts

Front 21

contractile elements of skeletal muscle consisting of protein myofilaments

Back 21

Myofibrils

Front 22

Composed of myosin molecules

Back 22

Thick filaments

Front 23

Each molecule is shaped like intertwined gof clubs wih heads that form cross-bridges

Back 23

Thick filaments

Front 24

Composed of actin, topomyosin and troponin molecule

Back 24

thin filaments

Front 25

Basic functional unit of a myofibril

Back 25

Sarcomere

Front 26

Anchor thin filaments and seperate adjacnt sarcomeres

Back 26

Z discs

Front 27

Contains only thin filaments

Back 27

I band

Front 28

Where thick and thin filaments overlap one another

Back 28

A band

Front 29

A region within A band that contains only thick filaments

Back 29

H band