Microscopic anatomy of skeletal muscle

Perimysium

Connective tissue surrounding a fascicle

Sacromere

Contractile unit of muscle

Sarcolemma

Plasma membrane of the muscle cell

Myofilament

Thick and thin. Constructed from proteins, principally myosin or actin.

Endomysium

Thin connective tissue investing each muscle cell

Fascicle

a discrete bundle of muscle cells

Muslce Fiber

a muscle cell (myocyte)

Epimysium

connective tissue ensheathing the entire muscle

Tendon

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

Myofibril

elongated contractile threads found in striated muscle cells. Several sarcomeres lined up end to end