Nervi clunium

The Nervi clunium (from Latin clunis = buttocks, croup, " nerves of the buttocks") are branches of the spinal cord nerves that are responsible for the sensitive innervation of the gluteal region ( regio glutaea ).

The Nervi clunium are divided into three groups:

• The Nervi clunium superiores ("upper gluteal nerves", in animals called "anterior croup nerves", Nervi clunium craniales ) are the dorsal branches ( rami dorsales ) of the first lumbar segments (1st – 3rd lumbar vertebrae, L1–3) of the spinal cord.
• The Nervi clunium medii ("middle gluteal nerves ") are the rami dorsales of the first three cross nerves (S1–3).
• The Nervi clunium inferiores ("lower gluteal nerves", in animals called "posterior croup nerves", Nervi clunium caudales ) arise from the Nervus cutaneus femoris posterior (S1-3) (in animals called Nervus cutaneus femoris caudalis ), which comes from the plexus sacralis to the skin on the back of the thigh. Thus, in contrast to the Nervi clunium superiores and medii, the Nervi clunium inferiores originate from the Rami ventrales . They supply the skin of the posterior gluteal region ( Regio glutaea posterior ).