Upper Extremity Review

The hand consists of how many bones?

• 8

• 14

• 27

• 32

Which of the following bones make up the wrist?

• Five carpals

• Five metacarpals

• Eight carpals

• Eight metacarpals

The bone part shown in this figure is the

• distal ulna

• proximal ulna

• distal radius

• proximal radius

How many phalanges are there in the thumb?

• One

• Two

• Three

• Four

The carpal bones articulate with the

• radius only

• ulna only

• phalanges only

• radius and phalanges

The capitulum of the humerus articulates with the

• radial head.

• trochlea.

• lateral epicondyle.

• ulnar coronoid process.

What anatomy is indicated by the arrow in this figure?

• Trochlea

• Capitulum

• Radial head

• Olecranon process

The central-ray angulation for the PA projection of the hand is ____ degrees.

• 0

• 5

• 7

• 3

For a PA projection of the hand, the central ray is directed to enter the

• second MCP joint.

• third MCP joint.

• head of the third metacarpal.

• head of the second metacarpal.

Flexing the fingers for a PA projection of the wrist causes which of the following?

• Placement of the carpal bones farther from the IR

• Placement of the carpal bones closer to the IR

• Less pain for the patient when the wrist is broken

• Greater resolution of the carpal interspaces