Question

Muscle contraction is the biomechanical process of:

A. stretching elastic elements to produce force
B. developing force through cross bridge formation
C. lengthening the muscle-tendon unit
D. shortening the muscle-tendon unit

Answer 1

Muscle contraction is the biomechanical process of shortening the muscle-tendon unit. This process is powered by ATP and controlled by neural stimulation.

Step-by-step explanation:

Muscle contraction is the biomechanical process of shortening the muscle-tendon unit.

When a skeletal muscle fiber contracts, the myosin heads attach to actin to form cross-bridges, and the thin filaments slide over the thick filaments, resulting in sarcomere shortening and the generation of tension. This process is powered by ATP and is controlled by neural stimulation.