Anatomy is a section of biology that deals with the structure of living things. Thigh Anatomy involves the study of bones, muscles, joints, ligaments, nerves, arteries and few other parts inside the thigh.
Anterior and Medial Thigh
The different bones in this part of the thigh are femur, ilium, ischium, patella, pubis and tibia. The strongest and longest bone found inside the body is the femur. The bone which bears the weight of the body is the tibia. The different muscles found are iliopsoas, sartorius, quadriceps femoris, rectus femoris, vastus lateralis, vastus medialis, pectineus, gracilis, adductor longus, adductor brevis and adductor magnus. There are four joints and ligaments, namely - inguinal ligament, pubic symphysis, patellar ligament and patellar retinacula. The various nerves found are femoral, femoral cutaneous anterior, saphenous and obturator. The various arteries are femoral, femoral deep, iliac external, obturator, circumflex femoral medial, circumflex femoral lateral and popliteal. The diverse structures are adductor canal, adductor hiatus, anterior compartment, pes anserinus, femoral canal, femoral ring, femoral sheath, femoral triangle, Hunter’s canal, medial compartment, saphenous hiatus and subsartorial canal.
Hip and Posterior Thigh
The various bones in this part of the thigh are ischium, femur and fibula. The different muscles are gluteus maximus, gluteus medius, gluteus minimus, tensor fasciae latae, piriformis, obturator internus, gernellus superior, gernellus inferior, quadratus femoris, biceps femoris, semitendinosus and semimembranosus. The diverse kind of nerves are sacral plexus, gluteal inferior, gluteal superior, sciatic, fibular common, tibial, pudendal, to obturator internus and to quadratus femoris. The arteries are gluteal inferior, gluteal superior, internal pudendal, femoral deep, popliteal, genicular middle, genicular superior lateral and genicular superior medial. The various structures are as follows - greater sciatic foramen, lateral compartment gluteal, lesser sciatic foramen, posterior compartment hamstring, popliteal fossa, sacroiliac joint and sacrospinous ligament.
The Muscles and Fasciae of the Thigh
The Anterior Femoral Muscles are Rectus femoris, Vastus lateralis, Vastus medialis and Vastus intermedius. The Medial Femoral Muscles are Gracilis, Adductor longus, Adductor magnus, Pectineus and Adductor brevis. The Muscles of the Gluteal Region are Glutaeus maximus, Glutaeus medius, Glutaeus minimus, Tensor fasciae latae, Piriformis, Obturator internus, Gemellus superior, Gemellus inferior, Quadratus femoris and Obturator externus. The Posterior Femoral Muscles are Biceps femoris, Semitendinosus and Semimembranosus. The leg is flexed upon the thigh by the Sartorius. It also flexes the thigh upon the pelvis. Upon bending the knee, the Sartorius helps the other muscles to rotate the tibia inward. The leg is extended on the thigh by the Quadriceps femoris.