RADIAL NERVE-C.FOREARM

SUMMARY

1. Enters anterior to lateral epicondyle. Gives deep branch (posterior interosseous n.) & continues as the superficial radial n.  


SUPERFICIAL RADIAL NERVE
2. Passes under brachioradialis with radial a. 

POSTERIOR INTEROSSEOUS NERVE
3. Enters forearm through 2 heads of supinator, supplies this muscle.
4. Supplies ECRB.
5. Supplies superficial extensors (extensor digitorum, extensor digiti minimi, ECU). 
6. Supplies deep extensors (EPL, APL, EPB, EI). 



Image: Whitaker, R. and Borley, N. (2016). Instant anatomy. 6th ed. Chichester (West Sussex): Wiley Blackwell, p.120.

Reference(s)

R.M.H McMinn (1998). Last’s anatomy: regional and applied. Edinburgh: Churchill Livingstone.
Gray, H., Carter, H.V. and Davidson, G. (2017). Gray’s anatomy. London: Arcturus.