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Gluteus maximus
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Which are the following structures passes through the greater sciatic foramen of the llium?
pirifomis musle superior gluteal artery and vein internal pudental atery and vein superior gluteal nerve inferior gluteal atery and vein inferior gluteal nerve pudental nerve sciatic nerve poterior femoral cutanious nerve nerve to obturator internus nerve to quadratus femoris
Which nerve lies deep to the sciatic nerve in the gluteal region?
The sciatic nerve is the largest nerve in the human body, originating from the lumbosacral plexus (L4-5 and S1-3) and providing sensory and motor innervation to the lower extremity. The sciatic nerve exits the pelvis via the greater sciatic foramen below the piriformis muscle. In the gluteal region, the sciatic nerve courses between muscle layers. The nerve is deep (anterior) to the gluteus maximus muscle and is superficial (posterior) to the inner muscle layers (superior and inferior gemellus muscles, obturator internus muscle, quadratus femoris muscle). It courses down the midline of the posterior thigh and branches into the tibial and common peroneal nerves usually in the popliteal fossa. Sciatic nerve block is most commonly performed for foot or ankle surgery
What muscle in the buttock crosses the sciatic nerve?
The piriformis muscle crosses the sciatic nerve in the buttock region. Compression or irritation of the sciatic nerve by the piriformis muscle can lead to sciatica symptoms like pain, tingling, or numbness in the buttock and down the leg.
Why does the gastrocnemius muscle contract after stimulating the sciatic nerve?
The gastrocnemius is stimulated by a branch of the sciatic nerve called the tibial nerve. This causes contraction and produces plantar flexion of the foot. When a person stands on their "tippy toes" that is plantar flexion. This is a function of this nerve.
Which muscle is anatomically closest to the sciatic nerve?
hamstring
What muscle does the sciatic nerve pass through?
M. Piriformis
What is the effector of the Achilles reflex?
gastrocnemius muscle
Where does the sciatic nerve exit?
The sciatic nerves exit the pelvic bone through an opening (greater sciatic foramen) to emerge in the buttock.
Why are buttock muscules as injection sites for children under age 2 contraindicated?
Injecting medication into the buttock muscle in children under age 2 is contraindicated because the gluteal muscles are not fully developed and may not provide proper absorption of the medication. Additionally, the sciatic nerve runs through the buttock area, making it a risky site for injections in young children. A more suitable injection site for young children is the vastus lateralis muscle in the thigh.
What can cause back pain besides muscle tear or spasm?
Pinched nerve .Or sciatica, an inflammation of the sciatic nerve.
Which nerve belongs to the peripheral nervous system A. Sciatic nerve B. Vagus nerve C. Optic nerve D. Trigeminal nerve?
sciatic
What major nerve innervates the extensors of the leg?
The sciatic nerve is the major nerve that innervates the extensor muscles of the leg, particularly the tibialis anterior muscle. It is a large nerve that branches into the common fibular nerve and the tibial nerve, both of which supply various muscles in the leg.
