The medial pectoral nerve (also known as the medial anterior thoracic nerve) is (typically) a branch of the
medial cord of the
brachial plexus
The brachial plexus is a network of nerves (nerve plexus) formed by the anterior rami of the lower four Spinal nerve#Cervical nerves, cervical nerves and first Spinal nerve#Thoracic nerves, thoracic nerve (cervical spinal nerve 5, C5, Cervical spi ...
and is derived from
spinal nerve root Spinal nerve root may refer to:
* Posterior root of spinal nerve
* Anterior root of spinal nerve
Back anatomy
Peripheral nervous system
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