Skeletal Muscle Organization

Question 1

Name the major proteins of the sarcomere that make up the thin and thick filaments.

Answer 1

Thin= Actin, Actin forms fibrous helical chains.
Tropomyosin, fibrous protein that extends the length of the thin filament such that tropomysoin can cover the Myosin binding site on Actin.

Thick= Myosin heavy chains, a large protein with a filamentous tail and globular head along with two light chains per head.