Flashcards
Lecture 15
Cards in this deck (35)
- 1forms floor of anatomical snuff boxscaphoid
- 2most commonly fractured wrist bonescaphoid
- 3articulates with radiusscaphoid and lunate
- 4articulates with ulna during ulnar deviationtriquetral
- 5sesamoid bone in wristpisiform
- 6forms in tendon of flexor carpi ulnarispisiform
- 7radiocarpal joint typecondyloid (ellipsoidal) synovial joint
- 8Radiocarpal joint degree of freedom2 degrees
- 9radiocarpal joint articular surfacesscaphoid
lunate
distal radius
triquetral - 10radiocarpal joint ligamentslateral/radial collateral ligament
medial/ulnar collateral ligament
dorsal radiocarpal ligament
palmar radiocarpal ligament - 11radiocarpal nerve supply frommedian nerve (anterior interosseus branch), radial nerve (posterior interosseus), ulnar nerve (deep and dorsal)
- 12radiocarpal joint articular arteriesarise from dorsal and palmar carpal arches
- 13distal radioulnar joint ligamentsDorsal radioulnar ligment
palmar radioulnar ligament - 14Midcarpal jointmade up of intercarpal joints
between proximal and distal rows of carpals and between carpals - 15midcarpal joint movementssome flexion extension
radial deviation/abduction
especially d/t movement of head of capitate in its socket - 16ligaments of midcarpal jointdorsal ligaments
palmar ligaments
interosseus ligaments - 17Flexion of wrist, where and degrees40% at radiocarpal joint
60% at midcarpal joint - 18extension of wrist, where and degrees33% at midcarpal joint,
67% at radiocarpal - 19radial deviation/abduction degrees15-25
- 20ulnar deviation/adduction degrees30-45
- 21Tendons defining snuff-boxExtensor pollicis longus
extensor pollicis brevis
abductor pollicis longus - 22Abductor pollicis longus originposterior surface of proximal half of ulna, radius and interosseus membrane
- 23abductor pollicis longus insertionbase of first metacarpal
- 24abductor pollicis longus acitonsabducts thumb and extends it at the carpometacarpal joint
- 25abductor pollicis longus innerationposterior interosseus nerve
- 26extensor pollicis brevis originposterior surface of distal 1/3 of radius and interosseus membrane
- 27extensor pollicis brevis insertiondorsum of proximal phalanx of thumb
- 28extensor pollicis brevis actionextends proximal phalanx of thumb at metacarpophalangeal joint and extends carpometacarpal joint
- 29extensor pollicis brevis blood supplyposterior interosseus artery
- 30extensor pollicis brevis innervationposterior interosseus nerve
- 31extensor pollicis longus originposterior surface of middle 1/3 of ulna and interosseus membrane
- 32extensor pollicis longus insertiondorsal aspect of base of distal phalanx of thumb
- 33extensor pollicis longus actionsextends distal phalanx of thumb at its interphalangeal joint and extends the metacarpophalangeal and carpometacarpal joint
- 34extensor pollicis longus blood supplyposterior interosseus artery and perforating branch of anterior interosseus arteries
- 35extensor pollicis longus innervationposterior interosseus nerve
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- Anatomy Flashcards on Lecture 15, created by Alexis Bartschi on 20/10/2017.
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- Alexis Bartschi
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