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Flashcards in Bones of the Hand Deck (26)
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1

Carpal Bones

8 in the wrist

2

Metacarpal Bones

5 in the palm

3

Phalangial bones

14 in the fingers

4

The hand (# of bones)

27 bones total

5

Radio-Ulnar Joint

Location: Formed by the distal ends of the radius and ulna
Function: Permits pronation and supination movements of the hand

6

Styloid processes of the radius and ulna

Location: Pen like projections of bone
Function: Are attached to ligaments of the wrist that extend to the proximal row of carpal bones

7

Carpal Bones arrangement

Arranged in two rows of four bones

8

Proximal row of bones

Scaphoid, lunate, triquetrum, pisiform

9

Scaphoid (Navicular) bone

Lateral most bone, Boat shaped

10

Lunate

Moon shaped

11

Triquetrum

Triangular shaped

12

Pisiform

Small - pea shaped
Example of sesamoid bone
Location: found suspened in the tendon of the flxor carpi ulnaris muscle

13

Distal row of carpal bones

Trapezium, trapezoid, capitate, Hamate

14

Trapezium

(a little table) Lateral most bone

15

Trapezoid

Four sided

16

Capitate

Shaped like a head

17

Hamate

Hook like process (Hamlus of the hamate)

18

Distal Carpal bones

Form the joints with the 5 bones of the palm

19

Metacarpal bones

Meta = beyond
Location: just beyond the carpal bones of the wrist
Located 1 - 5, beginning with the thumb
Function: articulates with the most proximal of the phalangeal bones of each digit (Forming the knucles)

20

First Metacarpal

The shortest, in the thumb

21

Metacarpo-phalangeal Joints

MP Joints
Formed by the metacarpal and proximal bones

22

Three phalanges of the fingers

Proximal, middle and distal

23

Phalange bones of the thumb

Proximal and Distal

24

Proximal Interphalangeal Joints

(PIP) Proximal and middle phalanges

25

Distal Interphalangeal joints

(DIP) btwn middle and distal phalanges

26

Interphalangeal Joint

(IP) only in the thumb, btwn proximal and distal