Skeletal muscle unit - quiz one - anatomy phys.

Fascicle

A discrete of muscle cells

Myofibril

A long, filamentous organelle found within muscles cells that has a banded appearance

Fiber

A muscle cell

Mayofilament

Actin- or myosin- containing structure

Epimysium

Connective tissue covering the entire muscle

Perimysium

Connective tissue surrounding a fascicle

Sarcomere

Contractile unit of muscle

Tendon

Cordlike extension of connective tissue beyond the muscle, serving to attach it to the bone

Sarcolemma

Plasma membrane of the muscle cell

Endomysium

Thin connective tissue investing each muscle cell (covers it)