Lower Limb.4 - Back of the thigh & gluteal region

When, we go to the back of the thigh and the gluteal region, we'll find superficially in the gluteal region the largest gluteal muscle which is the gluteus maximus. And, in the back of the thigh we'll find the muscles of the back of the thigh (these are the muscles of the back of the thigh). So, superficially in the gluteal region there is the gluteus maximus and below in the thigh there are the muscles of the thigh. And, to understand the details of this region, then we have to cut the gluteus maximus like this and then reflect its fibres. And, in reflection on the gluteus maximus, the sciatic nerve which is the nerve of the back will appear, so this is the sciatic nerve, "the biggest nerve in the body" (again ! This is the sciatic nerve). As, we go with the sciatic nerve above, we find that it emerges out through this foramen, this foramen is the greater sciatic foramen. So, in reflection of the gluteus maximus, we'll find the greater sciatic foramen with the sciatic nerve coming out of it. And, when we follow the sciatic nerve down we'll find that the nerve divides into two divisions. So, this is the sciatic nerve and when we follow it down we'll find that it divides into two divisions, one lateral and thin (so, this is the lateral division), and the other is medial and thick. The, medial division is called the tibial nerve and the lateral division is called the common peroneal nerve. So, we'll find the sciatic nerve supplying the muscles of the back and it divides into two divisions (one lateral and one medial). The, large one is medial and one lateral. The, large medial one is the tibial nerve "this is the tibial nerve", and the small thin lateral one will be the common peroneal. Again in another specimen, when we go to the lower limb of the other side we'll find also the sciatic nerve in the back of the thigh dividing into large and thick medial branch, which is the tibial and a thin lateral branch which is the common peroneal. And here, the division of the sciatic nerve is at a higher level. It, comes out of the sciatic foramen and already divided into tibial and common peroneal. Deep, to these two nerves, when we go down and approach the knee, we'll find that deep to these two nerves there will be the popliteal vein, "this is the popliteal vein and it is deep to the two nerves". The, popliteal vein will continue up as the femoral vein, then when we remove or take the popliteal vein up, we'll find very deep the popliteal artery which is the direct continuation of the femoral artery. This region is the upper part of the popliteal fossa, where we find the nerves then deep to them the vein and very deep and close to the femur there will be the popliteal artery "the deepest structure is the artery", superficial to it is the vein and very superficial will be the two divisions of the sciatic, the tibial close to the vessels and very lateral there will be the common peroneal nerve. Now, when we go to the muscles of the back of the thigh we'll find that they are arranged in the form of two groups. A lateral group formed of one muscle