ANAT 1615 Exam 2 Upper Limb - Questions Part 1-3 (Dr Hassani)

ANAT 1615 Exam 2 Upper Limb - Questions Part 1-3 (Dr Hassani)

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Upper Limb – Questions Part 1 Anterior Compartment of Forearm : 1) Which muscle flexes the forearm at ELBOW? (not wrist) Pronator Teres 2) In the Anterior Forearm (superficial), which muscles attach to medial epicondyle (with no ulnar attachment)? a) Flexor Carpi Radialis b) Palmaris Longus 3) In Anterior Forearm (superficial), which muscles have attachment to both the medial epicondyle and Ulnar? a) Pronator Teres. b) Flexor Carpi Ulnaris 4) What is innervated by the Ulnar nerve in the anterior forearm (which muscles are innervated and which heads are involved)? FCU (as it enters the forearm by passing between its two heads of proximal attachment) and the ulnar part of the FDP, which sends tendons to the 4th and 5th digits (medial part) 5) The Median nerve innervates which muscles in (superficial and intermediate) layers? Does it innervate the FCU? a) Pronator Teres. b) Flexor Carpi Radialus c) Palmaris Longus d) Flexor Digitorum Superficialis (It does NOT innervate FCU)
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6) The Anterior Interosseous nerve innervates which muscles in anterior forearm? And which head of FDP? 7) Which muscle flexes and ABDUCTS hand (at wrist ) ? Flexor Carpi Radialus 8) Which muscle flexes and ADDUCTS hand (at wrist ) ? Flexor Carpi Ulnaris NOTES: Median Nerve in (Forearm): Enters Cubital Fossa Medial to BRACHIAL ARTERY The main nerve in the forearm. It has no branch in ARM. Branches are : 1) Articular Branch : elbow joint 2) Muscular Branch: Pronator teres, FCR, FCU (humeral head), Palmaris longus, FDS 3) Anterior Interosseous Nerve: Pronator quadratus, FPL, FDP ( LATERAL HEAD ) Deep layer of Anterior Forearm except for Medial part of (FDP)
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4) Palmar cutaneous of median nerve : Skin of central of the palm RADIAL NERVE SUPPLIES FOREARM (Extensors): Has sensory and motor functions in arm and forearm. (Only sensory in hand) Sensory and motor fibers in forearm are separated into two branches: Superficial (sensory or cutaneous) Deep radial / posterior interosseous nerve ( motor ) 1) Deep branch of Radial nerve: (posterior interosseous nerve) (motor terminal branch)
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