Answer:
Extend, flex.
Explanation:
Muscle can be defined as the soft tissue that helps in the movement of the body and controls the body coordination. Three main types of body tissue are smooth muscle, cardiac muscle and skeletal muscle.
The muscles also perform the extension, flexion, adduction and abduction of the body parts. The anterior surface of the muscles located on thigh hwlps in the body extension. The muscles located on the posterior surface of the thigh helps in the flexion of the knee.
Thus, the correct answer is extend, flex.
It averages from 8 to 9 in sizes.
Strength vs. Muscular strength is determined by how much force you can exert or how much weight you can lift. Building muscular strength uses heavier weights for fewer repetitions. Muscular endurance refers to the ability of a muscle to sustain repeated contractions against resistance for an extended period of time.