Extensor Region of Forearm and Dorsum of Hand

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: Extensor Region of Forearm and Dorsum of Hand: Learning Objectives and Review Questions : True/False : True/False - 2011 : The extensor carpi radialis inserts on the base of the proximal phalanx of the second digit. : Making a fist entails tightly flexing the finger joints with assistance from the extensors of the hand. : The extensor carpi radialis brevis is an adductor of the wrist. : The extensor carpi radialis longus is a more potent adductor of the wrist than is the extensor carpi radialis brevis. : The extensor carpi ulnaris receives the only muscular branch of the ulnar nerve in the forearm. : The supinator muscle, on the space shuttle, may weakly extends the elbow. : The supinator muscle extends the elbow. : The supinator is an agonist to the biceps at the proximal radio ulnar joint and an antagonist at the elbow joint. : The abductor pollicis longus muscle is innervated by the posterior interosseous nerve. : The extensor pollicis longus forms the anterior border of the anatomical snuff box. : The muscles having tendons bordering the anatomical snuff box are innervated by the posterior interosseous nerve. : The extensor pollicis brevis forms the anterior border of the anatomical snuff box. : The abductor pollicis longus shares a compartment with the extensor pollicis brevis but is not consider a boundary of the anatomical snuff box. : The extensor indices is not tethered by the intertendinous connections the limit independence of the extensor digitorum tendons. : The posterior interosseous nerve enters the posterior compartment of the forearm by passing the superior free edge of the interosseous membrane. : The posterior interosseous artery enters the posterior compartment of the forearm by passing the superior free edge of the interosseous membrane. : The anterior interosseous artery enters the posterior compartment of the forearm by passing through the interosseous membrane at the level of the extensor retinaculum. : Gray's Figures 49.16 and 49.17 would be entirely political correct as identifications on your upper limb examination. : The deep radial nerve is within a neurovascular bundle with the radial artery. : The interosseous recurrent artery ascents toward the posterior surface of the lateral elbow deep to the anconeus muscle. : Brachioradialis flexes the elbow and extends the wrist. : Extensor carpi radialis longus inserts at the base of the second metacarpal. : The abductor pollicis longus intervenes between the posterior interosseous membrane and the posterior interosseous nerve. : The anterior interosseous nerve is directly applied to the interosseous membrane. : The superficial branch of the radial nerve can be palpated as it crosses the medial (posterior) boundary of the anatomical snuff box. : The tendon of flexor carpi radialis longus crosses the anatomical snuff box proximal to the crossing of the radial artery. : The dorsal carpal arch receives arterial branches from the radial artery, anterior posterior interosseous arter, posterior interosseous artery, and the dorsal branch of the ulmar artery. : The dorsal metacarpal arteries lie on the posterior surface of the dorsal interosseous muscles. : The extensor hood moves distally during extension. : Extensions of the lateral bands extend beyond the distal attachment of the central band. : The central slip together with the lateral band is similar to a trident with a short center prong. : Despite that the interossei are posterior to the deep transverse metacarpal ligament, there are anterior to the axis of the metacarpophalangeal joint.

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