Inferior gluteal nerve

The ulnar glut ( a) eus inferior (Latin, "lower back nerve" ) is a nerve of the lumbar plexus Cross ( lumbosacral plexus ). In animals, it is called a caudal gluteal nerve ( "rear Krupp nerve" ).

The cells of origin ( root ) cells of the nerve are located in the lumbar and sacral part of the spinal cord in humans from the fifth lumbar vertebra (L5 ) to the second sacral vertebra (S2) in domestic animals usually only in the first two cross segments ( S1, S2).

Course

The nerve passes in humans together with the homonymous artery and vein, the sciatic nerve, the posterior femoral cutaneous nerve, the pudendal nerve and the internal pudendal artery and vein by the so-called foramen infrapiriforme.

In the domestic animals of the nerve from the lumbosacral trunk, a common origin for strand gluteal nerve caudal, cranial gluteal nerve and sciatic nerve exits. This leaves through the greater sciatic foramen the pelvic cavity.

Innervation

The inferior gluteal nerve contains almost exclusively motor nerve fibers and innervation in humans only the gluteus maximus. In domestic animals this muscle is called gluteus superficialis. In addition, the nerve in pets is involved in the innervation of other skeletal muscles of the hip region, namely that of the biceps femoris muscle and the semitendinosus.

Improper intramuscular injection in the buttocks, the lower back nerve may be injured.