 Let me just show you the neurovascular structures. This is the superior gluteal artery which is a branch from the posterior division of the internal aliac and we can see that it's giving multiple branches and Accompanied that is the superior gluteal nerve L5S1 which supplies the gluteus medius minimus denser facial They come out through the suprapariformis compartment. It's a very important clinical correlation pertaining to the gluteus medius If there's any injury to the superior gluteal nerve Like for example a stab injury to the buttock then the gluteus medius is paralyzed Of course other muscles are also paralyzed But the most important manifestation is because of this one of the job of the gluteus medius is to stabilize the pelvis Especially when we are standing on one leg gluteus medius of that leg Prevents the pelvis from sagging down to the opposite side if this muscle is paralyzed Then when the person is standing on the leg of the paralyzed side the pelvis will sag down on the opposite side And that condition is known as Fremdlenberg sign And because the leg will then drag on the ground the person will develop one of the three Gates either a gluteal gate or high stepping gate or an out swinging gate So that is a very important clinical manifestation pertaining to injury or paralysis of the gluteus medius muscle and are the superior gluteal nerve now let's lift up the piriformis and we can see the inferior gluteal artery Which is the branch from the anterior division of the internal aliac and we can see the inferior gluteal nerve the inferior gluteal nerve other part of it we can see on the Reflected surface of the gluteus maximus This supplies the gluteus maximus if the gluteus maximus is paralyzed The patient will not be able to extend and laterally rotate his hip But more important he will not be able to sit and stand and he will not be able to climb up And there's a clinical condition called epiconus syndrome which involves the s12 segment of the spinal cord where Gluteus maximus is paralyzed then we have coming out through the intra piriformis compartment. This big nerve This is the shatic nerve and we can see it has got these components the pre-axial and The post-axial components operator internals inferior gemulus and the quadratus femoris they form a bed Between the ischial tuberosity and the greater trochanter and running on the surface of the bed is this big nerve Which is the shatic nerve the largest nerve in the human body and the shatic nerve then continues to the back of the thigh And the third structure which comes out from the Intra piriformis compartment is this which I have lifted up here This is the internal pudendal artery and the pudendal nerve They come out through the greater shatic for a man and they Exit the pelvis through the lesser shatic for a man where my thing instrument is located This is the sacro tuberous ligament. It's a very powerful ligament extending from the sacrum to the ischial tuberosity and under that is the sacrospinus ligament and the space between the two is known as the lesser shatic for a man and this Passes through the lesser shatic for a man and it enters into the ischial fossa and supplies the perineum So a rule a mnemonic for the structures coming out. So the greater shatic for a man is from lateral to medial is SGP S stands for shatic nerve G stands for gluteal and P stands for pudendal. So these are the structures the relevant structures mentioned here Thank you very much for watching Dr. Sanjas and your signing out if you have any questions or comments, please put them in the comment section below. Have a nice day