An X ray of thewrist and handin given below . If there is a damage to structureE, Which of the following muscle weakness does it cause ?: (A) Flexor carpi radialis, (B) Palmaris longus, (C) Flexor carpi ulnaris, (D) Brachioradialis
Answer is C. The hook of hamate and the pisiform provide inseion for the flexor carpi ulnaris. Also note- If the floor of anatomic snuff box and origin of abductor pollicis brevis are damaged, bones most likely to be involved is B i.e. scaphoid forms the floor of the anatomic snuffbox and provides a site for origin of the abductor pollicis brevis.