Medial cord
Medial Cord
The Medial Cord (Pronunciation: ME-dee-al KORD) is a significant component of the brachial plexus, a network of nerve fibers that run from the spine, through the neck, and into the arm.
Etymology
The term "Medial Cord" is derived from the Latin words 'medius' meaning middle and 'cordis' meaning heart. It is so named because of its position in the middle of the brachial plexus, which is located near the heart.
Anatomy
The Medial Cord is formed by the anterior divisions of the lower and middle trunks of the brachial plexus. It gives rise to several important nerves, including the ulnar nerve, the median nerve, and the medial cutaneous nerves of the arm and forearm.
Function
The Medial Cord plays a crucial role in transmitting signals from the central nervous system to the muscles and skin of the arm and hand. It is responsible for the sensation and motor control of the ulnar side of the hand, including the little finger and half of the ring finger.
Related Terms
- Brachial Plexus: The network of nerves that sends signals from your spine to your shoulder, arm, and hand.
- Ulnar Nerve: A nerve that runs near the ulna bone and controls movement and sensation in the forearm and hand.
- Median Nerve: A nerve that runs down the arm and forearm and provides sensation to the palm, thumb, index finger, middle finger, and part of the ring finger.
- Medial Cutaneous Nerves: Nerves that provide sensation to the skin of the arm and forearm.
External links
- Medical encyclopedia article on Medial cord
- Wikipedia's article - Medial cord
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