Brachial plexus
the curriculum is falsely reassuring I swear. anyway, here's wonderwall
course
- roots pass between scalenus anterior and medius
- trunks run posterior to middle 1/3 of clavicle
- divisions in apex of axilla
Read That Damn Cadaver Book; Rugby Teams Drink Cold Beer, whatever
roots - trunks - divisions - cords - branches
roots
C5-T1
trunks = lie posterior to axillary artery
- Superior trunk – a combination of C5 and C6 roots.
- Middle trunk – continuation of C7.
- Inferior trunk – combination of C8 and T1 roots.
cords
- Lateral cord - superior + middle trunk
- Posterior cord - superior, middle and inferior trunk
- Medial cord - inferior trunk