Chapter 36

Front 1

3 types of muscle tissue

Back 1

Skeletal, cardiac, and smooth

Front 2

Sarcolemma

Back 2

Muscle plasma membrane

Front 3

Sarcoplasm

Back 3

Cytoplasm of a muscle cell

Front 4

Prefixes

Back 4

Myo, mys, and sarco all refer to muscle

Front 5

Skeletal muscle tissue

Back 5

Packaged into skeletal muscles that attach to and cover the bony skeleton

-obvious stripes called striayions

-can be controlled voluntarily

Front 6

Cardiac muscle tissue

Back 6

Occurs only in the heart

-is striated like skeletal muscle

-involuntarily, contracts at a fairly steady rate set by the hearts pacemaker

Front 7

Smooth muscle tissue

Back 7

Found in the walls of hollow visceral organs, such as the stomach, urinary bladder, and respiratory

-is not striated

-involuntarily with slow and sustained contraction

Front 8

Excitability or irritability

Back 8

The ability to receive and respond to stimuli (stimuli is usually chemical)

-response is generation of an electric impulse that passes along the sarcolemma of the muscle cell and cause the cell to contract

Front 9

Contractility

Back 9

The ability to shorten forcibly when adequately stimulated

-sets muscle tissue apart from other tissue types

Front 10

Extensibility

Back 10

The ability to be stretched or extended

-shorten when contracted and stretched when they relax

- can be stretched beyond its resting length

Front 11

Elasticity

Back 11

The ability of a muscle fiber to recoil and resume is resting length after being stretched

Front 12

For important functions performed by muscles

Back 12

Producing movement by muscle contraction, maintaining posture, stabilizing joints, and generating heat as a contract

Front 13

The three connective tissue sheaths

Back 13

Endomysium, perimysium, and epimysium

Front 14

Endomysium

Back 14

Find sheets of connective tissues composed of reticular fibers

Front 15

Perimysium

Back 15

Fibrous connective tissue

Front 16

Epimysium

Back 16

An overcoat of dense regular connective tissue

Front 17

Direct or fleshy

Back 17

The epimysium of the muscle if fused to the periosteum of a bone or the cartilage

Front 18

Indirect

Back 18

The muscles connective tissue wrappings extend beyond the muscle either as a rope like tendon or as a sheet - like aponeruosis

Front 19

Glycosomes

Back 19

Organelles full of glycogen

Front 20

Striations

Back 20

A repeating series of perfectly aligned dark A bands and light I bands, are evident along the length of each myofibril

Front 21

H-zone

Back 21

A lighter stripe in the midsection of each A band

Front 22

M line

Back 22

Is a dark line that bisected vertically the H zone

Front 23

Z disc

Back 23

Or Z line is a darker area at the midline of the I bands

Front 24

Sarcomere

Back 24

Is the region of a myofibril between two successive Z discs

Front 25

Muscle fatigue

Back 25

The muscle is in a state of physiological inability to contract