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The adductor magnus is a large triangular muscle that forms a dividing wall between the muscles of the inner thigh and those on the back of the thigh. It is located on the inside of the thigh. This long muscle originates from a narrow point on the pelvis bone (ischiopubic ramus), passes between the masses of the hamstring and quadriceps groups and inserts, at its wide apex, in the linea aspera and on the back of the femur. It is a powerful muscle that adducts the thigh. It is innervated by the obturator and the sciatic nerves and is supplied by the profunda femoris artery. The small, flat uppermost portion of the adductor magnus is called the adductor minimus. These muscles are innervated by the obturator nerve and supplied by branches of the femoral artery.
 Research Adductor Magnus
The lower margin of each ilial wing features a sharp concavity where the ilium and the sacrum join. This is called the greater sciatic notch, and it allows the sciatic nerves to pass to the legs below.
Research Greater Sciatic Notch
The peroneal nerves include the common (peroneus communis), superficial (peroneus superficialis), and deep peroneal (peroneus profundus) nerves. Originating in the sciatic nerves, which branch off of the spinal cord between the fourth lumbar and third sacral vertebrae, these nerves extend to the calf muscles, the skin of the top of the foot, and the toes.
Research Peroneal Nerves
Sciatica (neuritis of the leg) is a pain of the sciatic nerves, often caused by exposure to cold or wet.
Research Sciatica
The sciatic nerves branch off of the spinal cord between the fourth lumbar and third sacral vertebrae. They extend down the legs, innervating the hamstrings, and branch into the tibial and peroneal nerves which innervate the lower leg.
Research Sciatic Nerves
The tibial nerves branch off of the sciatic nerves and, in turn, divide into anterior and posterior branches. These branches innervate the muscles of the lower leg, ankle, and foot.
Research Tibial Nerves
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The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
©1993 - 2009 The Probert Encyclopaedia
Southampton, United Kingdom
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