How To Relief
  • Home
  • Health Conditions
  • Living Healthy
  • Human Anatomy
  • Medical Device
  • Hospital & Doctor
No Result
View All Result
  • Home
  • Health Conditions
  • Living Healthy
  • Human Anatomy
  • Medical Device
  • Hospital & Doctor
No Result
View All Result
How To Relief
No Result
View All Result

Obturator Nerve: Course, Motor & Sensory Innervation

Obturator Nerve: The obturator nerve is a principal peripheral nerve of the lower limb. The obturator nerve originates from the ventral divisions of the second, third, and fourth lumbar nerves in the lumbar plexus.
Nerve roots: L2-L4
Sensory: Cutaneous branch innervates the skin of the medial thigh.
Motor: Innervates the medial (adductor) compartment of the thigh muscles.

obturator Nerve

Anatomical Course of the Obturator Nerve

The obturator nerve is produced by the anterior divisions of the second, third and fourth lumbar nerves. It penetrates into the fibers of the psoas major muscle and emerges from its medial border, running posteriorly to the common iliac arteries and laterally along the pelvic wall to the obturator foramen. It then enters the thigh within the obturator canal and splits into anterior and posterior divisions.

The anterior division descends within the adductor longus and adductor brevis muscles towards the femoral artery, giving off branches to the adductor brevis, adductor longus, and gracilis muscles. In rare cases, it additionally gives off a branch to the pectineus muscle. It then penetrates the fascia lata to become the cutaneous branch of the obturator nerve.

The posterior division descends within the obturator externus muscle before passing anteriorly to adductor magnus muscle and giving off branches to supply it.

Function of the Obturator Nerve

Motor Functions

The obturator nerve innervates all the muscles in the medial compartment of the thigh but the hamstring part of the adductor magnus, that is innervated by the tibial nerve.

  • Adductor Longus Muscle – adducts thigh
  • Adductor Brevis Muscle – adducts thigh
  • Adductor Magnus Muscle – adductor part adducts and flexes thigh, hamstring part extends the thigh
  • Gracilis Muscle– adducts thigh
  • Obturator Externus Muscle – laterally rotates the thigh

Sensory Function

The cutaneous branch of the obturator nerve provides the skin of the middle part of the medial thigh.

ShareTweetPin23ShareSend
Free Household Items for Low Income Families

Free Household Items for Low Income Families

Heat Pump Tax Credit 2023 Income Limits

Heat Pump Tax Credit 2023 Income Limits & Applying Guideline

Free Home Repairs for Senior Citizens Texas

Free Home Repairs for Senior Citizens Texas

Low-Income Appliance Replacement Program

Low-Income Appliance Replacement Program: Get Free from Government

Free Home Repair Grants in Alabama

Free Home Repair Grants in Alabama 2023

  • About How To Relief
  • Advertise
  • Privacy & Policy

Copyright © 2016 - 2019 How To Relief. All rights reserved.

No Result
View All Result
  • Home
  • Health Conditions
  • Living Healthy
  • Human Anatomy
  • Medical Device
  • Hospital & Doctor

Copyright © 2016 - 2019 How To Relief. All rights reserved.