Structure of a Skeletal Muscle definitions Flashcards

A type of muscle tissue that is attached to bones and is responsible for voluntary movements.

A single muscle cell, long and multinucleated, that makes up the bulk of skeletal muscle.

A bundle of muscle fibers surrounded by connective tissue called perimysium.

A layer of connective tissue that surrounds each individual muscle fiber.

Connective tissue that surrounds a fascicle, or bundle of muscle fibers.

The outer layer of connective tissue that surrounds the entire muscle.

A rope-like structure formed by connective tissues that connects muscle to bone.

A flat, sheet-like connective tissue that connects muscles to bones.

The specialized cell membrane of a muscle fiber that transmits electrochemical signals.

Membrane canals that extend from the sarcolemma into the muscle fiber, aiding signal transmission.

A specialized endoplasmic reticulum in muscle cells that stores and releases calcium ions.

Rod-like organelles within muscle fibers, composed of repeating units of myofilaments.

Protein filaments, primarily actin and myosin, responsible for muscle contraction.

The fundamental contractile unit of muscle, composed of repeating actin and myosin structures.

The striped look of skeletal muscle due to the organized arrangement of sarcomeres.