Brachial plexus facts for kids
The brachial plexus is divided into five roots, three trunks, six divisions, three cords, and five branches.
The five roots come out of the spinal cord. They are each named after the part of the spinal cord they come out of: C5, C6, C7, C8, and T1.
These roots join to form three trunks:
- "upper" (C5-C6)
- "middle" (C7)
- "lower" (C8-T1)
Each trunk then splits into two divisions:
- anterior (front) divisions of the upper, middle, and lower trunks
- posterior (back) divisions of the upper, middle, and lower trunks
These six divisions join up again to become the three cords.
- The posterior cord is formed from the three posterior divisions of the trunks (C5-C8,T1)
- The lateral cord is formed from the anterior divisions of the upper and middle trunks (C5-C7)
- The medial cord is simply a continuation of the anterior division of the lower trunk (C8,T1)
The nerves that come out of the brachial plexus include:
- Radial nerve
- Axillary nerve
- Musculocutaneous nerve
- Median nerve
- Ulnar nerve
- Brachial artery
Images for kids
This shows a simulated example of motorcyclist colliding with the floor at an angle, which may damage the brachial plexus nerves. The photo shows how head and shoulder are extremely separated, which may stretch or even tear the nerves in the between area. Protective gear can help prevent nerve damage by providing extra support on the opposite side of the head to prevent over-stretching the neck.
Brachial plexus Facts for Kids. Kiddle Encyclopedia.