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Procedures Ch 4

How many bones are in the hand? 27
The digits contain how many phalanges? 14
Where do you center for an AP hand projection? perpendicular to the 3rd metacarpal joint
The hand contains how many metacarpals? 5
How many phalanges does the 1st digit contain? 2
How many phalanges do the other 4 digits contain? 3
Name the phalanges of the other 4 digits. proximal, middle, distal
Name the 3 parts of each phalanx head, body, base
Name the 4 parts of each metacarpal head, neck, body, base
Name the area below the head of the metacarpal where fractures often occur neck
Name the distal end of the metacarpal head
Name the proximal end of the metacarpal base
Name of the 2 small bones located on the palmar aspect of the first metacarpal below the neck sesamoid bones
The metacarpal heads are commonly known as: knuckles
How many carpal bones are in the wrist? 8
Name the 4 bones of the proximal row of carpals, nearest the forearm scaphoid, lunate, triquetrum, pisiform
Name the 4 bones of the distal row of carpals trapezium, trapezoid, capitate, hamate
The carpals are classified as: short bones
The metacarpals are classified as: long bones
the largest bone in the proximal carpal row - has a tubercle on the anterior and lateral aspect for muscle attachment and is palpable near the base of the thumb scaphoid
articulates with the radius proximally and is easy to recognize because of its crescent shape lunate
roughly pyramidal and articulates anteriorly with the hamate triquetrum
a pea-shaped bone situated anterior to the triquetrum and is easily palpated pisiform
begins the distal row of carpals on the lateral side trapezium
located next to trapezium and has a smaller surface anteriorly than posteriorly trapezoid
articulates with the base of the third metacarpal and is the largest and most centrally located carpal capitate
medial carpal in the distal row hamate
a triangular depression located on the posterior surface of the wrist and is visible when the thumb is abducted and extended anatomic snuffbox
a clinical sign suggesting fracture of the scaphoid tenderness in the snuffbox area
the most commonly fractured carpal bone scaphoid
The anterior or palmar surface of the wrist is concave from side to side and forms the ______ _______. carpal sulcus
a strong fibrous band that attaches medially to the pisiform and hook of hamate and laterally to the tubercles of the scaphoid and trapezium flexor retinaculum
the passageway created between the carpal sulcus and flexor retinaculum carpal tunnel
The _____ _____ and the _____ _____ pass through the carpal tunnel. median nerve and flexor tendons
results from compression of the median nerve inside the carpal tunnel carpal tunnel syndrome
Name the 2 bones that are contained in the forearm that lie parallel to each other radius and ulna
located on the lateral side of the forearm radius
located on the medial side of the forearm ulna
Created by: kkant