the hamstrings originate as a group in basal ganglia.
the hamstrings originate as a group in basal ganglia.
where do the hamstrings originate as a group?
basal ganglia
hamstring









































in human anatomy, a hamstring () is one of the three posterior thigh muscles in between the hip and the knee (from medial to lateral: semimembranosus, semitendinosus and biceps femoris). the hamstrings are quite susceptible to injury.









































in quadrupeds, the hamstring is the single large tendon found behind the knee or comparable area.









































section::::criteria.









































the common criteria of any hamstring muscles are: 









































bullet::::1. muscles should originate from ischial tuberosity.









































bullet::::2. muscles should be inserted over the knee joint, in the tibia or in the fibula.









































bullet::::3. muscles will be innervated by the tibial branch of the sciatic nerve.
hamstring
the internal surface forms part of the bony wall of the lesser pelvis. in front it is limited by the posterior margin of the obturator foramen. below, it is bounded by a sharp ridge that provides attachment to a falciform prolongation of the sacrotuberous ligament, and, more anteriorly, gives origin to the transverse perineal and ischiocavernosus muscles.









































posteriorly the ramus forms a large swelling, the tuberosity of the ischium, where the hamstrings originate.









































section::::structure.:inferior ramus.
ischium