Appendicular Skeleton: Forearm, Wrist, Hand Flashcards Preview

Anatomy 2201 > Appendicular Skeleton: Forearm, Wrist, Hand > Flashcards

Flashcards in Appendicular Skeleton: Forearm, Wrist, Hand Deck (7)
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1

Forearm: Pronation and Supination

Supination: radius parallel to ulna
--SAP: supination="hold soup in hand"

Pronation: radius crossed over ulna

2

Forearm: Radius and Ulna

Ligaments that anchor the wrist attach to the radial and ulnar styloid processes

3

Radius

Primary forearm bone that contributes to wrist

Few landmarks:
--head
--radial tuberosity
--shaft
--styloid process
--ulnar notch

4

Wrist Fractures

Typically fracture distal radius while catching yourself during a fall (FOOSH!)
Common in older females
"Dinner fork" presentation
Can lead to nerve damage and dysfunction

5

Carpals

8 carpals make up wrist. Arranged (roughly) in 2 rows. Gliding movements at articulations, wrist is very flexible

Scaphoid is most frequently fractured

CAN NOT SEE Pisiform in posterior view

6

Carpals: Mnemonic

(R to L clockwise) Scaphoid, Lunate, Triquetrum, Pisiform, Hamate, Capitate, Trapezoid, Trapezium

"So Long To Pinkie, Here Comes The Thumb"

7

Metacarpals and Phalanges

5 metacarpals, each w/ a head, shaft, and base

Numbered I-V, thumb to little finger
Digits II-V have 3 phalanges: proximal, middle, and distal
Digit I (pollex or thumb) has 2 phalanges: proximal and distal

Each digit has 1 metacarpal