MUSCLE PHYSIOLOGY

PHYSIOLOGY

SARCOMERE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Thin filaments in a myofibril are made of:
A
Sarcomeres
B
Sarcoplasm
C
Actin
D
Myosin
Explanation: 

Detailed explanation-1: -Final answer: The thin filament of a myofibril is a complex of three different proteins called actin, tropomyosin, and troponin.

Detailed explanation-2: -Most of the cytoplasm consists of myofibrils, which are cylindrical bundles of two types of filaments: thick filaments of myosin (about 15 nm in diameter) and thin filaments of actin (about 7 nm in diameter).

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