Flexion
A body builder is doing curls, a type of arm exercise, with hand weights. In a curl, the body builder bends his arm and brings the weight closer to his or her shoulder. What type of movement is this?

Is it considered muscles' ennervation if the sympathetic fibers innervate vessels within the muscle ? (vasomotricity)

During the past few weeks or months, have you noticed any exercises that have become too easy for you? do you think you need to increase the intensity in any of the three exercise areas in your workouts? evaluate your exercise progress in the three exercise areas (cardiovascular, resistance, and flexibility) and list what modifications, if any, you may need to make in your exercise routine.

What percent of body heat can be lost through the head