10/10 Joints of the Upper Extremity II: Hand and Wrist - Brauer (Completed) Flashcards
Where do you find the annular ligament? 2
originates and inserts on the ulna wrapping around the head of the radius
What bone rotates during supination and pronation? 2
Radius
What muscles drive suppination? 2
supinator m.
Biceps brachii m.
What muscles drive pronation? 2
pronator quadratus m.
teres m.
What is a CMJ and a RCJ? 3
CMJ - carpometacarpal joint
RCJ - Radiocarpal joint
What movement involves ulnar deviation? 4
adduction
What movement involves radial deviation? 4
abduction
What do we call the wrist joint? What bones make up the wrist joint? 5
Condyloid synovial joint
- ) Radius
- ) styloid process of Ulna
- ) Scaphoid
- ) Lunate
- ) Triquetrum
Where is the ulnar collateral ligament of the wrist found? 6
styloid process of ulna - triquetrum
Where is the radial collateral ligament of the wrist found? 6
styloid process of radius - scaphoid
What is contained within the Carpal tunnel? 7
median n.
9 tendons
What forms the roof of the carpal tunnel? 7
Transverse carpal ligament (flexor retinaculum)
What is contained within the Ulnar tunnel? 7
ulnar n.
ulnar a.
What forms the floor and the roof of the ulnar tunnel? 7
Roof - palmar carpal ligament
Floor - flexor retinaculum
What is a Boutonniere Deformity? 13
Proximal interphalangeal joint (PIP) is stuck in flexion
Distla interphalangeal joint (DIP) hyperextended
What is Mallet Finger? 14
Distal interphalangeal (DIP) flexion
extensor tendon damage causes laxity
What is Swan Neck Deformity? 15
extension of the proximal interphalangeal joint (PIP)
flexion of distal phalangeal joint (DIP)
What is Skier’s Thumb? 16
collateral ligament at 1st metaphalangeal joint (MPJ) ruptures
thumb abducts abnormally far
What is Bull Rider’s Thumb? 17
sprain of radial lateral collateral ligament
avulsion fx of lateral proximal phalanx of thumb
What is Boxer’s Fracture? 17
fracture of 5th MCJ
caused by punched w/ a closed abucted fist
