Overview of the brachial plexus anatomy
The brachial plexus runs along the neck, armpit, and arm. It originated from the spinal column, specifically the lower four cervical vertebrae to the first vertebra of the thoracic region. The brachial plexus anatomy is composed of nerves that send signals to the brain and receive signals from the brain. There are 17 nerves in the brachial plexus and each of them controls various muscles.
- Ulnar nerve – controls the flexor carpi ulnaris and the flexor digitorum profundus
- Forearm medial cutaneous nerve – middle skin of the forearm
- Arm medial cutaneous nerve – anterior and middle aspect of the arm
- Middle portion of the median nerve – controls part of the hand not controlled by the ulnar and radial nerve
- Medial pectoral nerve – controls major and minor pectoralis
- Musculocutaneous nerve – cutaneous nerve of the lateral part of the forearm; controls the biceps brachii, brachialis, and coracobrachialis
- Suprascapular nerve – controls infraspinatus and supraspinatus
- Subclavian nerve – controls the subclavian muscle
- Radial nerve – controls the extensor muscles of the forearm, brachioradialis, triceps brachii, anconeous, and supinator
- Axillary nerve – control deltoid and teres minor muscles
- Inferior nerve of the subscapular – subscapularis and teres major
- Middle subscapular nerve – latissimus dorsi
- Thoracic nerve – serratus anterior
- Posterior nerve of the scapula – levator scapulae and rhomboid muscles
General Characteristics of the Brachial Plexus Anatomy
Diseases that Pertain to the Anatomy of Brachial Plexus
Summary of the Anatomy of Brachial Plexus
The brachial plexus anatomy is truly an amazing structure of the body. It is a system of nerves that control the entire upper extremities with some exception. These nerves also allow us to feel sensations on our skin.
If there would be damage to the brachial plexus, dire consequences may ensue. Make sure that you understand the brachial plexus anatomy to fully take care of it.