The flashcards below were created by user
laneaustin
on FreezingBlue Flashcards.
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what does the radiocarpal joint include?
- radius
- radioulnar disk
- scaphoid
- lunate
- triquetrum
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motion plane of the midcarpal joints?
gliding motion
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Triangular fibrocartilage complex location
disk extends from the ulnar side of radius to the ulnar styloid process
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purpose of Triangular fibrocartilage complex
- cushions joint
- stabilizeds radiocarpal joints
- with it, the ulna bears 40% of the load
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wrist flexion has an arthokinematic motion in which direction?
posterior
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wrist extension has an arthokinematic motion in which direction?
anterior
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proximal row of carpals include:
- scaphoid
- lunate
- triquetrum
- pisiform
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distal row of carpals include:
- trapezium
- trapezoid
- capitate
- hamate
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Radial Collateral Ligament is located where?
- styloid process to
- scaphoid& trapezium
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Ulnar collateral ligament is located where?
- styloid process to
- pisiform and triquetrum
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Palmar radiocarpal ligament is located where?
- anterior surface of wrist:
- radius & ulna to scaphoid, lunate, and triquetrum
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purpose of Palmar radiocarpal ligament
prevent extension
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Dorsal radiocarpal ligament is located where?
- posterior surface of wrist:
- radius to scaphoid, lunate, triquetrum
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purpose of Dorsal radiocarpal ligament
limit flexion
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describe palmar fascia
triangular-shaped fascia on palmar surface
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Flexor Carpi Ulnaris
O.I.A.N.
- O: Medial epicondyle
- I: base of 5th MC and pisiform
- A:Wrist flexion and Ulnar deviation
- N:ulnar
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Flexor Carpi Radialis
- O: medial epicondyle
- I:base of 2nd & 3rd MC
- A: wrist flexion and Radial Deviation
- N: median
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Palmaris Longus
O.I.A.N.
- O: medial epicondyle
- I: palmar fascia
- A: assists in wrist flexion
- N: median
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Extensor carpi radialis longus
OIAN
- O: lateral epicondyle
- I:base of 2nd metacarpal
- A: extension and radial deviation
- N: Radial
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Extensor Carpi Radialis Brevis
OIAN
- O: lateral epicondyle
- I: base of 3rd Metacarpal
- A: wrist extension
- N: radial
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Which muscle doesn't perform wrist deviations?
Extensor Carpi radialis brevis
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Extensor Carpi Ulnaris
OIAN
- O: lateral epicondyle
- I: base of 5th metacarpal
- A: wrist extension and ulnar deviation
- N: radial
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