Skip to main content

Unfortunately we don't fully support your browser. If you have the option to, please upgrade to a newer version or use Mozilla Firefox, Microsoft Edge, Google Chrome, or Safari 14 or newer. If you are unable to, and need support, please send us your feedback.

Elsevier
Publish with us
Medial Root of Median Nerve (Right)
Nervous System

Medial Root of Median Nerve (Right)

Radix medialis nervi mediani

Read more

Quick Facts

Origin: Medial cord of brachial plexus.

Course: Combines with its corresponding lateral root from the lateral cord of brachial plexus to form the median nerve.

Branches: None.

Supply: Motor innervation to the muscles of the anterior compartment of the forearm and hand.

Complete Anatomy
The world's most advanced 3D anatomy platform
Try it for Free

Origin

The medial root comes off as a terminal branch of the medial cord of brachial plexus (C8, T1).

Course

The median nerve has two roots; the medial and lateral roots. The medial root comes off from the medial cord (C8, T1) while the lateral root comes off from the lateral cord (C5, C6, C7) of brachial plexus. Both roots embrace the third part of axillary artery. The median nerve is formed by the union of both medial and lateral roots, either anterior or lateral to the axillary artery.

Branches

There are no named branches and directly contributes to the median nerve.

Supplied Structures

The median nerve is a mixed nerve which contains sensory and motor neuronal fibers from the C5—C7 cervical segments of the spinal cord. It provides motor innervation to the muscles of the anterior compartment of the forearm and the hand. The lateral root nerve fibers are predominantly directed towards the forearm musculature, whereas the medial root fibers are predominantly reserved for the hand musculature.

Learn more about this topic from other Elsevier products

Median Nerve

ScienceDirect image

The median nerve is an average of 22 mm away from the anteromedial portal (Lindenfeld, 1990).

Explore on ScienceDirect(opens in new tab/window)

Complete Anatomy

The world's most advanced 3D anatomy platform

Complete Anatomy