Genitofemoral nerve

Genitofemoral nerve
Nerve: Genitofemoral nerve
Plan of lumbar plexus. (Genitofemoral nerve visible at upper left.)
The lumbar plexus and its branches. (Genitofemoral nerve visible at upper left.)
Latin nervus genitofemoralis
Gray's subject #212 953
Innervates cremaster
From lumbar plexus
To lumboinguinal, genital branch

In human anatomy, the genitofemoral nerve originates from the upper part of the lumbar plexus of spinal nerves. Its roots are L1 and L2 (lumbar).

The genitofemoral nerve is responsible for both the efferent and afferent limbs of the cremasteric reflex. The ilioinguinal nerve (L1) is also involved in the afferent limb of the reflex.

It emerges on the anterior surface of the psoas major muscle and divides into two branches:

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  • genitofemoral nerve — gen·i·to·fem·o·ral nerve fem (ə )rəl n a nerve that arises from the first and second lumbar nerves and is distributed by way of branches to the skin of the scrotum or the labia majora and to the upper anterior aspect of the thigh * * * nervus… …   Medical dictionary

  • Genital branch of genitofemoral nerve — Nerve: Genital branch of genitofemoral nerve Deep and superficial dissection of the lumbar plexus. (External spermatic branch of genitofemoral labeled at bottom right.) Latin ramus genitalis nervi genitofemoralis Gray s …   Wikipedia

  • genitofemoral — “+ adjective Etymology: genito + femoral : of or relating to the genital organs and the thigh the genitofemoral nerve …   Useful english dictionary

  • Nerve to obturator internus — Nerve: Nerve to obturator internus Plan of sacral plexus and pudendal plexus. (Nerve to the Obturator internus and Gemellus superior labeled at lower left.) …   Wikipedia

  • Nerve to the Piriformis — Nerve: Nerve to the Piriformis Plan of sacral plexus and pudendal plexus. (Label to piriformis is at center left.) …   Wikipedia

  • Nerve to quadratus femoris — Nerve: Nerve to quadratus femoris Plan of sacral plexus and pudendal plexus. Latin nervus musculi quadratus femoris Gray s …   Wikipedia

  • Nerve — A bundle of fibers that uses electrical and chemical signals to transmit sensory and motor information from one body part to another. See nervous system. * * * A whitish cordlike structure composed of one or more bundles (fascicles) of myelinated …   Medical dictionary

  • Anterior cutaneous branches of the femoral nerve — Nerve: Anterior cutaneous branches of the femoral nerve Cutaneous nerves of the right lower extremity. Front and posterior views. (Anterior cutaneous branches of the femoral nerve in yellow, near center, on both sides.) …   Wikipedia

  • genitofemoral — Relating to the genitalia and the thigh; denoting the g. nerve. SYN: genitocrural. * * * gen·i·to·fem·o·ral (jen″ĭ to femґə rəl) genitocrural …   Medical dictionary

  • Lumboinguinal nerve — Infobox Nerve Name = PAGENAME Latin = ramus femoralis nervi genitofemoralis, nervus lumboinguinalis GraySubject = 212 GrayPage = 953 Caption = Cutaneous nerves of the right lower extremity. Front and posterior views. (Lumboinguinal visible at… …   Wikipedia

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