Fundamentals of Anatomy and Physiology

The Skeletal System

(C)

Figure 7- 19 (C) Femur.
(Continued)

Head of
radius^
Neck of
radius
Radial
tuberosity

(^) of
University Fankhauser, David Dr. by Photography
(^).
® Learning
Cengage
2016Cincinnati ©
Olecranon
Proximal
radioulnar
joint

163

lunate (LOO-nate), and scaphoid (SKAFF-oyd), also

known as the navicular (nah-VIK-you-lahr). In the distal

row from medial to lateral are the hamate, capitate

(KAP-ih-tate), trapezoid (TRAP-eh-zoyd), or lesser, and

the trapezium (trah-PEE-zee-um), or greater multangular.

The palm of the hand is made up of the five

metacarpal- bones (see Figure 7-21). These are small,

long bones, each with a base, a shaft, and a head. They

radiate out from the wrist bones like the spokes of a wheel

rather than being parallel. They each articu-late with a

proximal phalanx (FAY-langks) of a finger. Each finger,

except the thumb, has three phalanges (fah-LAN-jeez): a

proximal, a middle, and a terminal, or distal, phalanx. The

thumb has only a proximal and distal phalanx.

Head of

radius^

Neck of

radius

Radial

tuberosity

Radius

Styloid

process of

radius

(A)

Ulna

Radius

Distal (^)
jointradioulnar ®^
Styloid processof ulna Styloidprocess (^) Learning

(B)

(^) of radius
Cengage^
©^
Figure 7- 20 Right radius and ulna. (A) Anterior view. (B) Posterior
view.