Re: Clinical Correlate - Hand

Comments:
: : : Hand Clinical Correlate - Dr. Ingrahm : : : Review Questions : : : These questions were not submitted by the lecturer. : : : True/False - September 26, 2011 : : : 1. In addition to forensics, the fingerprints aid in grip. : : T : Agree. : : : 2. The palmaris longus, but not the palmaris brevis, inserts onto the palmar fascia. : : T - palmaris brevis originates there. : Agree. : : : 3. Ulnar dominate is the more common pattern of nerve supply to the hand. : : T : Agree. : : : 4. The radial artery terminates into the princeps pollicis and the deep palmar arch. : : T : Agree. : : : 5. Guyon's tunnel is superficial and lateral to the flexor retinaculum (transverse carpal ligament). : : F - superficial and medial : Agree. : : : 6. The deep branch of the ulnar is the smaller of the two terminal branches. : : T? : Agree. Ulnar nerve. : : : 7. The superficial palmar arch elaborates common digital arteries and the deep palmar arch elaborates palmar metacarpal arteries. : : T : Agree. : : : 8. Common digital arteries split to form the proper digital arteries. : : T : Agree. Palmar proper digital arteries. : : : 9. The digital arteries are anterior (superficial) to the digital nerves. : : F - deep : Agree. Thats right. Paraesthesia with full profusion. : : : 10. The nail beds are innervated by the palmar digital nerves. : : T - if referring to proper palmar digital nerves : Agree. : : : 11. The superficial radial nerve extends to the nail beds of the radial 3.5 fingers. : : F - median : Agree. Dorsal cutaneous nerves to not extend to the nail beds. : : : 12. The recurrent median nerve does something. : : T - It exists, if nothing else. : Agree. Put that in the database. : : : 13. The deep branch of the ulnar nerve innervates all of the interossei. : : T : Agree. And a couple of lumbricals to boot. That adds up to 9 of 11 intrinsic muscles that insert on the extensor hood. : : : 14. The deep branch of the ulnar crosses the ulnar surface of the hook of the hamate. : : F - radial : True. I think. Please start a post on this question if you believe me to be wrong. : : : 15. The extensor retinaculum lies deep to the skin. : : It has to. Nothing anatomically significant is superficial to the skin (with reference to hand structures). : You must doubt the metaphysical world. : : : 16. The extensor pollicis brevis and the abductor pollicis longus share a dorsal compartment of wrist/hand. : : T : Agree. : : : 17. The extensor carpi longus is lateral to the extensor carpi brevis tendon. : : T : Agree. : : : 18. The extensor pollicis longus tendon crosses the posterior surface of the scaphoid bone. : : T : Agree. : : : 19. The carpal tunnel is an osseofibrous passage having metacarpal bones at the posterior border. : : F - carpals : Agree. : : : 20. The flexor pollicis brevis is innervated by the recurrent branch of the median nerve and the superficial branch of the ulnar nerve. : : F - and deep branch ulnar nerve : Agree. : : : 21. Each of the three hypothenar muscles are innervated by the deep branch of the ulnar nerve. : : T : Agree. : : : 22. Both, the palmar and dorsal interossei pass anterior to the deep palmar metacarpal ligament. : : F - dorsal to it : Agree. : : : 23. Both, lumbricals and the interossei, pass anterior to the axis of the metacarpophalangeal joints. : : T : Agree. : : : 24. Ulnar nerve injury "claws" each of the medial four fingers with the radial two fingers more severely clawed. : : F - ulnar more severely clawed : Agree. : : : 25. The lateral branch of the lateral band extends distal to the central slip. : : T? - the lateral bands extend distal to the central slip. Are there medial and lateral branches of these? : Agree. Let's allow for the possibility. The descriptions are all over the place. : : : 26. The central slip attaches to the base of the proximal phalanx. : : F - middle phalanx : Agree. : : : 27. Intervening between the triquetrum and the distal ulnar is a fibrocartilagenous disc. : : F - between distal radius and distal ulna : True. Between the distal radius and the distal ulna; and between the ulna and the triquetrum. The disc is "L" shaped. The TFCC. Whatever that stands for. Dr. Ingrahm's lecture, Jess's lecture, and Gray's. This disk is involved in anteriomedial rotation of the distal radius on the ulna and also involved with limiting adduction of the wrist. : : : 28. Collectively, the interosseous ligaments proximate the carpal bones. : : F - metacarpals : True. From Dr. Ingrahm's lecture. Maybe the metacarpals as well. The deep transverse metacarpal ligament proximates the heads of the metacarpal bones. : : : 29. The triangular fibrocartilaginous complex (TFCC) limits adduction of the wrist. : : F? - it articulates the ulna and radius, but I would think the integrity of ligaments extending along the radial side of the wrist (eg - radial collateral) would be the limiters of adduction. : True. Nevertheless, I can't blame you for the thought. Radial collateral ligaments, indeed, resist adduction. Radiography best illustrated the limits of adduction.

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