Slide 1Slide 2Slide 3Slide 4Slide 5Slide 6Slide 7Slide 8Slide 9Slide 10Slide 11Slide 12Slide 13Slide 14Slide 15Slide 16Slide 17Slide 18Slide 19Slide 20Slide 21Slide 22Slide 23Slide 24Slide 25Slide 26Slide 27Slide 28Slide 29Slide 30Slide 31Slide 32Slide 33Slide 34Slide 35Slide 36The Wrist and Hand JointsChapter 7Wrist and Hand Terms1. Carpi2. Digitorum3. Pollex4. Radialis5. UlnarisA. WristB. FingersC. Thumb D. Lateral (thumb)E. Medial (little finger)Bones of the Wrist and HandCarpal BonesCarpal BonesNote the two rowsCarpal Bones•Proximal row from the radial (thumb) to the ulnar (little finger) side•scaphoid (boat shaped) or navicular•lunate (moon shaped)•triquetrum (three cornered)•pisiform (pea shaped)TpTpTzTzCCHHSSLLTqTqPPPalm of the left handCarpal Bones•Distal row from the radial (thumb) to the ulnar (little finger) side•trapezium•trapezoid•capitate (head shaped)•hamate (hooked)TpTpTzTzCCHHSSLLTqTqPPPalm of the left handCarpal Bones•So Long To Pinky, •Here Comes The ThumbCarpal BonesTp Tz C HS L Tq Pradial (thumb) sideH C Tz TpP Tq L Sradial (thumb) sideCarpal Bones–Scaphoid most often injured–From falling on outstretched hand–Often dismissed as a sprain–Significant problem if not recognized & treated properly–Usually long period of precise immobilization or surgeryCarpal Bones–Carpal bones form a three-sided arch–concave on palmar side–bony arch is spanned by transverse carpal & volar carpal ligaments–creates the carpal tunnel –frequently a source of problems known as carpal tunnel syndromeMetacarpal Bones1122334455Metacarpals are identify as 1st through 5thFirst Metacarpal•Sesamoid bonePhalanxes•Distal•Middle•ProximalPhalanxes are identify as 1st through 5th1, 2, 3, 4, 5Name the Bones•1 = •Scaphoid•5 = •Trapezium•10 = •Second metacarpal•14 = •Proximal phalange•15 = •Middle phalange•16 = •Distal phalangeRadiusstyloid processUlnastyloid processStyloid ProcessHumeruslateral and medial epicondylesEpicondyles•Medial epicondyle, medial condyloid ridge, & coranoid process - origin for many wrist & finger flexors•Lateral epicondyle & lateral supracondylar ridge - origin for many wrist & finger extensorsThe Wrist and Hand JointsJoints•Wrist joint •condyloid-type joint•allows flexion, extension, abduction, & adduction•motion occurs primarily between distal radius & proximal carpal row (scaphoid, lunate, & triquetrum)Joints•Each finger has 3 joints–Metacarpophalangeal (MCP) joints–Proximal interphalangeal (PIP) joints–Distal interphalangeal (DIP) jointsJoints•Thumb has 2 joints–Metacarpophalangeal (MCP) joint •Ginglymus–Interphalangeal (IP) joint•GinglymusMajor Joints•Interphalangeal joints•Distal•Proximal •Metacarpophalangeal joints•Carpometacarpal ( a saddle joint at the thumb)•Radialcarpal jointActions of the Wrist and HandWrist ActionsWrist ActionsFinger ActionsFinger ActionsThumb Actions•Opposition•movement of thumb across palmar aspect to oppose any or all of the phalanges•Reposition•movement of thumb as it returns to anatomical position from opposition with hand and/or fingersName the Finger ActionsName the Wrist ActionName the Wrist ActionName the
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