Muscles Vocab Flashcard

Front

A bundle of fascicles

Back

Muscle

Front

Attaches muscles to bones

Back

Tendons

Front

Layer of connective tissue covering each fascicle

Back

Perimysium

Front

Cell membrane

Back

Sarcolemma

Front

Network of membranous channels that stores calcium ions, corresponding to the endoplasmic reticulum in other cells.

Back

sarcoplasmic reticulum

Front

Threadlike structures in muscle fibers

Back

Myofibril

Front

Repeating pattern of striations; functional unit of skeletal muscle contraction.

Back

Sarcomere

Front

(light band) – thin actin filaments attached to Z disc

Back

I band

Front

Central region of filament overlap

Back

H zone

Front

Three proteins: Actin, troponin, and tropomyosin.

Back

Thin filaments