= ae 
the head, which is received into. “ a. pon cusaencee 
“4 
ee --posed of a 
© ae 
16 BOTANIC PHYSICIAN. 
little finger. Its figure is long, and thicker above than below.— 
There is the elbow process on which we lean ; and the crow process - 
opposite to it- In the lower extremities are the lower head and 
neck, and the pencil process, which gives strong adhesion to the 
digament which secures the wrist. Its use, to constitute the chief 
support of the fore-arm. It is connected with the pulley of the - 
upper arm, by its round head fitting into the corresponding cavity; 
and with the outer-arm bone by its rotating round it. : 
OUTER ARM BONE. net 
Situated in the external side of the fore-arm, towards the thumb. | 
In shape, it is long. The eminences are, the upper head which is 
excavated ; the little head and the pencil shaped process of the 
lower end. Its cavity, the joint cavity. dt assists in forming the 
fore-arm, and serves for bending, and turning the arm... It is con-— 
nected to the upper-arm by a hinge joint; to the fore-arm bone by 
an intervening ligament; and with the wrist by ball and socket. 
WRIST. 
The wrist is composed of eight bones, which lie close to each 
_ other in a double row, between the fore-arm andthe hand. It 
is divided into two rows, the upper and lower. In the upper row, — 
(from the thumb to the little finger,) are the ship bone, the moon 
bone, wedge, and round bone. In the lower row, the two square — 
bones, the great bone, and the hook bone. : 
: BONES OF THE HAND. — 
_ Situated betwéen the wrist and fingers. Composed of five longi- 
tudinal bones: one of the thumb, and four of the fingers. Thesé 
bones form the hand. | : ee 
FINGERS. 
Are situated at the lower extremity of the hand. They are com: 
thumb and four fingers. “The thumb has two bones, and 
ger three. ‘They form the fingers, which are the instruments 
Ba a = 
OF THE LOWER EXTREMITIES. _ 
_ The bones of the lower extremities ar +4 thie! ee bi 
E : . a ee oC Po% . hin 
THE PHigw, | ; 
Is situated between the basin, and the |] 
oe 
