Why do you suppose there are more and larger muscles involved in flexion of the fingers and hand than extension?

This muscle is the major “antagonist” of the muscles that flex the forearm. (What is an “antagonist?”)This muscle affects the scapula, and would be involved with “shrugging” the shoulders (shrugging the shoulders is lifting them up in an “I don’t know…” posture).This muscle could bring the arm downward in a power stroke, as if to strike a blow.

While walking forward, there is a pain when the leg is flexong at the knee. Followed bu the leg extending at the knee. What type of contraction  of the hamstring muscles would occur during flexion of the leg and then during extension of the leg? eccentric/ concentric eccentric/ isometric  concentric/ eccentric concentric/ isometric

What are the differences in the cellular and molecular levels in a bodybuilder arms muscles compared to those of a weaker, untrained person?

If your biceps brachii muscle attaches to your forearm 2 inches below your elbow, the distance from the elbow to the palm of your hand is 18 inches, and you lift a 20 pound weight, how much pull must your muscle exert to achieve elbow flexion? If your biceps brachii muscle attaches to your forearm 2 inches below your elbow, the distance from the elbow to the palm of your hand is 18 inches, and you lift a 20 pound weight, how much pull must your muscle exert to achieve elbow flexion? hhh

Most of the muscles of the skeleton are attached to areas very close to the joints, so their arms, although they are very small, their mechanisms allow the movement of the human body. (a) How are they considered from the point of view of force efficiency? (b) What are the biomechanical benefits?

Which muscles move the pectoral girdle? abdominal wall? pelvic outlet? the arm, forearm, and hand? the thigh, leg, and foot?

On a whim, Kelly decided to run a marathon after little training. The next day she had pain in her anterior thighs while descending stairs. What muscles are likely involved and how are they working when descending stairs.

What do you mean by visceral muscles?

When a soccer player kicks the ball and scores a goal, what muscles Flex the hip? Extend the knee? Plantar flex the ankle?