Muscle Terms and Entomology

ad-

toward

ab-

away

longus

long

bi

two

rectus

straight up or down

muscle flexion

Muscles contract and the angle between bones decreases

muscle extension

increases the angle between the bones

muscle retraction

the shortening or pulling back of a muscle

tendon

attach muscle to bone

ligament

attach muscle to muscle

Epimysium

Each muscle is surrounded by a connective tissue sheath called the epimysium; divide muscle into compartments

Fascia

connective tissue outside the epimysium, surrounds and separates the muscles.

fasciculus

bundles of muscle fibers

Perimysium

Connective tissue that surrounds the fasciculus

endomysium

connective tissue that surrounds the fasciculus

aponeurosis

broad, sheet-like extension of CT that attaches Ct to bone or muscle to bone