Which muscle will be paralyzed when the radial nerve is injured in just below the spiral groove?
-The radial nerve supplies Extensor carpi radialis longus below the spiral groove while the branches to long, medial and lateral heads of triceps are given off in the arm before the nerve descends into the spiral groove. Reference: Clinical Anatomy for students, a problem-solving approach, Neeta v Kulkarni, 2nd edition, page no.179
Lateral head of triceps
Medial head of triceps
Long head bf triceps
Extensor carpi radialis longus
Upper limb