Gluteus Maximus Muscle Function Origin Insertion Human Anatomy Kenhub
Hey, everyone! It's Matt from Kenhub, andin this tutorial, we will discuss the origin, insertion, innervation, and function of thegluteus maximus. The gluteus maximus muscle builds the mostsuperficial layer of the dorsal gluteal musculature and so forms the surface anatomy of the glutealregion or buttocks. The innervation is supplied by the inferiorgluteal nerve, a branch of the sacral plexus. Numerous vessels and nerves run under thegluteus maximus muscle, including the sciatic nerve, the pudendal nerve, and the superiorgluteal vessels. The muscle originates from the sacrum (dorsalpart), ilium (behind the posterior gluteal
line), the thoracolumbar fascia, and the sacrotuberousligament. Its caudal fibers insert at the gluteal tuberosityof the femur. On the contrary, the cranial fibers go over into the iliotibial tract,a strong fibrous band at the outside of the thigh, inserting at the lateral condyle atthe tibia. The gluteus maximus muscle is the most powerfulextensor and external rotator of the hip. It also supports the stabilization of thehip joint. The contraction of the cranial fibers leads to abduction, whereas the contractionof the caudal fibers causes an adduction. The iliotibial tract enhances the lateralthigh fascia, and thus, relieves the pressure
of the femur. That is also known as tensionband principle. This tutorial is more fun than reading a textbook,righté If you want more tutorials, interactive quizzes, articles, and an atlas of human anatomy,click on the â€œTake me to Kenhubâ€� button. It is time to say goodbye to your old textbooksand say hello to your new anatomy learning partner, Kenhub! See you there! kenhub .
Massage Tutorial Gluteal region gluteus maximus piriformis sciatica
Hi everyone, I'm Ian Harvey, massage therapist. This is my friend Christina. Today we're going to be talking about thegluteal region. Some people have some trepidation about workingwith the butt, but this is an important area. Your gluteal region connects your legs toyour body, it affects your low back, it affects your abdomen, it affects pretty much everything,and yet a lot of the time we don't even touch it as massage therapists. So let's look at some easy ways of workingwith this area.
First, let's talk about undraping. I like to come at the glutes from the topdown, and from the leg up. When I'm coming down from the back and theback is already undraped, maybe I'm working down this side of the body and I feel likeundraping the hip, I'll restrain the drape at around L5 or the sacrum. And then I will fold over. And at this point, you could tuck into theside here but I usually don't because I'll be working a little under the drape here,which we'll see in a second.
If I wanted access to the entire hipgluteregion, I would restrain the folded over drape right around the PSIS. So come around to the side a few inches, outto this lateral sacrum, restrain the drape there, and then fold over again, and thentuck at the inner thigh between the knee and the hip. To undrape from the leg, so let's say thatyou have the leg undraped already, if I wanted to undrape this further, first I would restrainthe drape at this tuck at the inner thigh, and this will allow me to draw the drape mediallywithout the drape getting away from me, or
creating any sort of draft. From here I can work on most of the hip, Ican even work up into the low back if I were to leave this drape up. You can of course tuck around to the sideif you want to offer a little more security. When I'm draping this area, I make sure todo a lot of bunching of the fabric. I'll bunch the fabric up, and then I'll endwith a fold. The fold keeps the fabric in place, the bunchedup fabric prevents any sort of draft from happening, it creates a very nice thermalbarrier.
So, if I'm working in this area and her leg'smoving, her muscles are moving, there's much less chance of this drape coming undone orsliding off. So let's talk about some relevant landmarks. First, let's find the SI joint. That's the sacroiliac joint. You'll find it if you palpate the ilium, thisbroad sheet of bone that forms the posteriorlateral part of the pelvis. And then come medial a bit, and you're goingto hit this big roadblock.
This is the edge of the triangular sacrum. A lot of the trouble that can happen in thehips you'll find right along this SI joint. People will report pain right here, and theymight report it as low back pain. So when people say they've got low back pain,ask them to point it out, they may just point out this ridge of bone here. This is a place where trigger points oftenhide, but if there's any trigger point activity here, I want you to look at all of the thingsthat connect right there at that SI joint. We'll talk about that more in a second.