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15 terms

Wrist-Chapter 11

STUDY
PLAY
Radiocarpal Joint
-Distal Radius
-Scaphoid, lunate, triquetrum (makes up with radius)
-Does NOT articulate with ulna
-Condyloid Joint
--Flx, ext, radial devi., ulnar devi.
Midcarpal, Intercarpal Joints
-Irregular Joint
-Gliding motions
Carpometacarpal (CMC) Joints
-Distal row of carpals and metacarpals
Bones
-Scaphoid, lunate, pisiform, triquetrum-thumb side
-Hamate, capitate, trapezoid,trapezium-from thumb side
Ligaments
-Radial Collateral Ligament
--Provide lateral support
-Ulnar Collateral Ligament
--Provide medial support
-Palmar Radiocarpal Ligament
--Limits wrist extension
-Dorsal Radiocarpal Ligament
--Limits wrist flexion
Flexor Carpi Ulnaris
-Flexes the carpals on the side of the ulna
-Wrist flexion, ulnar deviation
Flexor Carpi Radialis
-Flexes the carpals on the side of the radius
-Wrist flexion, radial deviation
Palmaris Longus
-Assistive in wrist flexion
Extensor Carpi Radialis Longus
-Wrist extension, radial deviation
Extensor Carpi Radialis Brevis
-Wrist extension
Extensor Carpi Ulnaris
-Wrist extension, ulnar deviation
Palmar Fascia
-A relatively thick, triangular-shaped fascia located superficially in the palm of the hand.
Radial & Ulnar Deviation
-Occur in the frontal plane around the sagittal axis
Dorsal Radiocarpal Ligament
-Attaches frm the posterior surface of the distal radius to the same surface of the scaphoid, lunate, and triquetrum
Muscles of the Wrist Does This Motion
Flexion
-Flexor carpi radialis, flexor carpi ulnaris
Extension
-Extensor carpi radialis longus and brevis, extensor carpi ulnaris
Radial Deviation
-Flexor carpi radialis, extensor carpi radialis longus
Ulnar Deviation
-Flexor carpi ulnaris, extensor carpi ulnaris