Plastic Surgery Key

11SCIATIC NERVE ANATOMY The ventral rami of the fourth lumbar to third sacral nerve roots unite to form the sciatic nerve. In the lesser pelvis the nerve lies anterior to…

8LUMBAR PLEXUS ANATOMY The lumbar plexus entails the ventral rami of the first three lumbar nerves, a contribution from the subcostal nerve, and the major portion of the fourth lumbar…

15Plantar Nerves ANATOMY The tibial nerve enters into the foot behind the medial malleolus, deep to the flexor retinaculum and between the tendons of the flexor hallucis longus and the…

10LATERAL FEMORAL CUTANEOUS NERVE, ILIOINGUINAL NERVE, AND GENITOFEMORAL NERVE ANATOMY The lateral femoral cutaneous nerve, a nerve of the lumbar plexus, arises from the ventral rami of L2 and L3….

9FEMORAL NERVE ANATOMY The femoral nerve takes its origin from the L2, L3, and L4 spinal nerve roots. It is the largest branch of the lumbar plexus and goes on…

7SPINAL ACCESSORY NERVE ANATOMY The fibers of the spinal accessory nerve (cranial nerve XI) are a series of rootlets that emerge from the spinal cord midway between the ventral and…

14SURAL NERVE ANATOMY The sural nerve is a pure sensory nerve that supplies the lateral aspect of the foot from the heel and ankle to the small toe. For the…

6ULNAR NERVE ANATOMY In Arm and Forearm The ulnar nerve descends in the arm posterior to the pectoralis major muscle and medial or posteromedial to the brachial artery. At the…

3AXILLARY NERVE ANATOMY The axillary nerve arises from the posterior cord of the brachial plexus distal to the subscapular and thoracodorsal nerves. It is made up of fibers primarily from…

2SUPRASCAPULAR NERVE ANATOMY The suprascapular nerve arises from the upper trunk of the brachial plexus with contributions from both the C5 and C6 nerve roots. It may occasionally also receive…