obturator externus การใช้

• All muscles in the lateral rotator group obturator externus, which is innervated by the lumbar plexus.
• It distributes branches to the obturator externus, pectineus, anastomoses with the posterior branch and with the medial femoral circumflex artery.
• :No mention of the Obturator externus at all; and that muscle is covered on the following page, without mention of the Obturator internus.
• It has been demonstrated by the course of the posterior branch of obturator nerve that the obturator externus is divided into a superior muscle fascicle and a main belly.
• The outer surface is uneven for the origin of the obturator externus and some of the fibers of the adductor magnus; its inner surface forms part of the anterior wall of the pelvis.
• The "'obturator externus groove "'is the groove on the posterior neck of the femur for the insertion of the obturator externus muscle, a muscle that is important during bipedal locomotion.
• The "'obturator externus groove "'is the groove on the posterior neck of the femur for the insertion of the obturator externus muscle, a muscle that is important during bipedal locomotion.
• The fossil " Orrorin tugenensis " ( 6-7 mya ) possesses the obturator externus groove, which suggests that it moved bipedally and could represent one of the earliest fossils with evidence of bipedal locomotion.
• The obturator externus muscle is sometimes considered part of this group, and sometimes excluded . ( Spatially, it is in this location, but functionally, it is more similar to the other lateral rotator group muscles ).
• Here it enters the thigh, through the obturator canal, and divides into an anterior and a posterior branch, which are separated at first by some of the fibers of the obturator externus, and lower down by the adductor brevis.
• It leaves the pelvis in front of the obturator externus and descends in front of the adductor brevis, and behind the pectineus and adductor longus; at the lower border of the latter muscle it communicates with the saphenous branches of the femoral nerve, forming a kind of plexus.
• The posterior side of the hip exhibits primarily hip extension, dealing with the muscles : gluteus maximus, hamstring muscles ( biceps femoris, semitendinosus, semimembranosus ), and the six deep external rotators ( piriformis, obturator externus, obturator internus, gemellus superior, gemellus inferior, and quadrates femoris ).
• The " medial surface ", of much less extent than the lateral, presents at its base a deep depression, the trochanteric fossa ( digital fossa ), for the insertion of the tendon of the obturator externus, and above and in front of this an impression for the insertion of the obturator internus and superior and inferior gemellus muscles.