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30 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Where does the majority of wrist flexion occur?
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Midcarpal joint
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How many degrees of motion occur a the wrist?
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Two
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What two joints make-up the wrist joint?
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Midcarpal and Radiocarpal joints
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What is the convex surface at the radiocarpal joint?
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Proximal row of carpal bones
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Is the ulna included as an articulating surface at the radiocarpal joint?
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No
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During what motion does the radial collateral ligament become taut?
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Ulnar deviation
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Describe the arthrokinematics of the wrist joint during open kinetic chain radial deviation.
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The proximal row of carpal bones roll laterally and glide medially
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What is the closed packed position of the wrist?
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Extension with RD
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What accounts for the fact that there is more wrist flexion then extension?
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Palmar Tilt
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What accounts for the fact that there is more ulnar deviation then radial deviation?
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Ulnar Tilt
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The wrist extensors originate from what epicondyle?
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Lateral
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What nerve roots innervate the Ext Carpi Radialis Longus?
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C6-7
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What nerve roots innervate the Flexor Carpi Ulnaris?
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C78-T1
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Wrist flexion is associated with what frontal plane motion?
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Ulnar Deviation
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What carpal bones make-up the proximal row?
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Scaphoid, lunate, triquetrum, pisform
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What nerve roots innervate the Ext Carpi Ulnaris?
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C7-8
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What ligament forms the roof of the carpal tunnel?
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Transverse Carpal
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What motion causes the Dorsal radiocarpal ligament to become taut?
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Wrist Flexion
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Radial and Ulnar deviation occur around what kind of axis?
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Sagittal
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None
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Describe the arthrokinematics of wrist flexion in a closed kinetic chain?
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The radius rolls and glides anteriorly
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What postion of the wrist enhances grip strength?
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Slight extension
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Why is grip strength diminished when the wrist is flexed?
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Active insufficiency occurs in the finger flexors.
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True or False: the palmaris longus is a wrist flexor.
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True
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What is normal wrist flexion?
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80 degrees
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What is normal ulnar deviation?
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30 degrees
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True or False: the Palmar radiocarpal ligament is slack during wrist flexion.
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True
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Name the carpal bones in the distal row starting medially?
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Hamate, Capitate, Trapezoid and Trapezium
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What classification of joint is the radiocarpal joint?
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Ellipsoid
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What nerve roots innervate the ECRB?
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C7-8
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Describe the arthrokinematics during CKC flexion. |
The radius rolls and glides anteriorly |
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