Name of test

Triceps reflex

What it tests

C7 nerve root.

How to do it

With the patient’s shoulder abducted 90 and elbow flexed 90, supoor the patients arm. Tap the triceps tendon just proximal to the olecranon..

The normal response

The exmainer should see a visible contraction of the triceps. A slight extension of the elbow may also be seen.

What it means if not normal


The triceps brachii is innervated by the radial nerve (C6, C7, C8).

If the patient is unable to abduct their shoulder to 90, the triceps reflex may also be tested with the patient’s arm at their side, similar to testing the biceps reflex.


Unknown macro: {cite}