Musculoskeletal System and Muscle Types

Flashcards on the musculoskeletal system, types of muscles, and structure of skeletal muscle.

Musculoskeletal System

Composed of the skeletal system and the muscular system working together to support and move the body.

Types of Muscles

Skeletal, smooth, and cardiac muscle.

Skeletal Muscles

Muscles that move bones and enable voluntary physical activities; under conscious control and attached to bones.

Smooth Muscles

Muscles found in internal organs like the stomach and intestines; not under conscious control (involuntary).

Cardiac Muscle

Muscle specific to the heart; contracts to reduce chamber space and push blood into vessels.

Extensibility

The ability to be stretched.

Elasticity

The ability to return to the original length after being stretched.

Perimysium

Sheath of connective tissue that surrounds bundles of muscle cells, allowing them to function as individual units.

Epimysium

Sheaths of connective tissue that hold bundles of muscle together and taper to form the tendon.