Some peptide/ protein hormones (angiotensin II, basic fibroblast growth factor -2, parathyroid hormone-related protein) also interact with intracellular receptors located in the cytoplasm or nucleus by an intracrine mechanism.eptide hormones are produced by many different organs and tissues, however, including the heart (atrial-natriuretic peptide (ANP) or atrial natriuretic factor (ANF)) and pancreas (glucagon, insulin and somatostatin), the gastrointestinal tract (cholecystokinin, gastrin), and adipose tissue stores (leptin).
Foot-and-Ankle Group. While your core muscles control ski-specific balance, your foot-and-ankle muscle group takes responsibility for the edging, pressure and rotational movements used in skiing. Your feet have intrinsic and extrinsic muscles.
1 Plays a part in stabilizing the knee cap. 2  Rectus femorisâon the front middle of the thigh and covers the other three quad muscles. 3  As a extensor muscle it straightens the leg allowing us to walk, run, jump and squat. Vastus lateralisâpart of the quadriceps femoris on the outside-front of the thigh, it extends or straightens the leg and is controlled by the femoral nerve. 2  Vastus intermediusâpart of the quadriceps femoris on the center-front of the thigh, it extends or straightens the leg and is controlled by the femoral nerve.