Structural and Behavioral Characteristics of Muscles (LM Pg.7) Review

Cardiac Muscle

It has automaticity

Skeletal Muscle and Cardiac Muscle

It has the abilities of being excited to electrical impulses, responding to them by contracting, and conducting the impulses to nearby cells

Cardiac Muscle

Each muscle fiber has one nucleus

Skeletal Muscles and Cardiac Muscle

Cells are long therefore are referred to as muscle fibers

Skeletal Muscle

Cells are parallel to one another, not branched

Smooth Muscle

It’s found in blood vessels, the esophagus, intestine, and iris (of the eye)

Skeletal Muscle and Cardiac Muscle

Muscle fibers are striated because of the presence of actin and myosin

Cardiac Muscle

Purkinje Fibers allow electrical impulses to travel extremely fast through tissues

Skeletal Muscle

It’s under voluntary control

Cardiac Muscle

It causes the heart to control and therefore to pump blood

Skeletal Muscle

It allows a person to walk, talk, and breathe because it includes the leg muscles, the Orbicularis Oris, the diaphragm, and external intercostals

Smooth Muscle

The tissue has smooth, not striped, appearance

Skeletal Muscle

Each muscle fiber has several nuclei

Cardiac Muscle

Muscle Fibers contain intercalated discs

Skeletal Muscle and Cardiac Muscle

Each Myocyte has several mitrochandria

Cardiac Muscle

Muscle fibers contract when stimulated by electrical impulses that originated nearby, within the ORGAN

Skeletal Muscle

Muscle Fibers contract when stimulated by electrical impulses that originated nearby, within the BRAIN

Cardiac Muscle

When comparing the muscle fibers of striated muscle types, it has fibers with a smaller diameter