radial nerve Diagram Biology Diagrams

radial nerve Diagram Biology Diagrams superficial branch radial nerve; dorsal digital branch; Origin: Radial nerve originates from the posterior cord of the brachial plexus (C5-T1) behind axillary artery; Course: Posterior wall axilla. courses on the posterior wall of the axilla (on subscapularis, latissimus dorsi, teres major) 3 Branches in axilla. posterior cutaneous nerve of the arm

Radial nerve. The radial nerve arises from ventral rami of C5 to C8 (+/- T1) and is a continuation of the posterior cord of the brachial plexus and is the largest branch of the brachial plexus, innervating almost the entire posterior side of the upper limb and provides a motor function to the extensor muscles of the forearm, wrist, fingers, and thumb.

Radial Nerve: What It Is, Function, Anatomy & Conditions Biology Diagrams

The Radial Nerve (n. radialis; musculospiral nerve), the largest branch of the brachial plexus, is the continuation of the posterior cord of the plexus.Its fibres are derived from the fifth, sixth, seventh, and eighth cervical and first thoracic nerves.It descends behind the first part of the axillary artery and the upper part of the brachial artery, and in front of the tendons of the

Your radial nerve takes a winding path from your lower armpit to some of your fingers. It allows you to move muscles and feel skin sensations in certain parts of your upper arm, forearm, wrist and hand. Like other peripheral nerves in your body, your radial nerve can become damaged, causing symptoms like pain and muscle weakness.

Radial Nerve Biology Diagrams

Anatomical Course. The radial nerve is the terminal continuation of the posterior cord of the brachial plexus.It therefore contains fibres from nerve roots C5 - T1. The nerve arises in the axilla region, where it is situated posteriorly to the axillary artery.It exits the axilla inferiorly (via the triangular interval), and supplies branches to the long and lateral heads of the triceps brachii. The radial nerve is one of the terminal branches of the posterior cord. In the axilla, it lies behind the axillary and upper brachial arteries and passes anterior to the tendons of teres minor, latissimus dorsi and subscapularis.It enters the posterior compartment of the arm passing through a triangular space, formed by the lateral humerus, long head of triceps and teres minor.