lower arm and hand

Question 1

how are the phalanges named / classified?

Answer 1

proximal, middle, and distal

Question 2

the Olecranon is the proximal part of the ____ bone

Answer 2

Ulna

Question 3

which is longer, ulna or radius?

Answer 3

ulna, it extends more proximally

Question 4

differences between the anterior and posterior view of the hand?

Answer 4

-Pisiform only on anterior view
(PA - P-ant)
-Head of hamate only on posterior view
(HHP-H-post)

Question 5

how are the fingers numbered?

Answer 5

Thumb is always 1, pinky always 5

Question 6

how many phalanges are in each finger?

Answer 6

3 phalanges in each finger, only 2 in thumb

Question 7

how are the phalanges named / classified?

Answer 7

proximal, middle, and distal

Question 8

Location and purpose of interosseus membrane?

Answer 8

between radius and ulna, inc surface area for
muscle attachment

Question 9

two carpal bones that can’t be palpated

Answer 9

lunate and trapezoid

Question 10

How is ulna different from radius?

Answer 10

• ulna is located medially
• is longer than the radius
• proximal end is larger compared to distal end

Question 11

how is the radius different then the ulna?

Answer 11

radius is shorter and located more laterally

Question 12

what occurs at the radial tuberosity, and what does it allow for?

Answer 12

• insertion site for tendon of the bicep
• allows for pronation of forearm

Question 13

CARPAL Bones (Anterior)
Names? Mneumonic?

Answer 13

Carpals - Anterior view
Straight Line to Pinky, Here Comes The Thumb
A = scaphoid
B = lunate
C = triquetrum
D = pisiform
E = hamate
F = capitate
G = trapezoid
H = trapezium

Question 14

largest carpal bone

Answer 14

capitate

Question 15

distal radioulnar joint permits what movement?

Answer 15

• permits medial and lateral rotation
  = pronation and supination of the forearm

Question 16

what muscle mainly helps initiate supination of forearm?

Answer 16

bicep