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ANATOMY. —. ea iT 
dimple in the middle for the attachment of the round cord ; the neck 
on which the head stands is rough, and gives attachment to the cap 
ligament ; the great projection below the neck, for the insertion of 
buttock muscles ; and the little projection, which receives the loin 
muscle, and internal muscles; and a rough line on the body of the - 
bone. 
- On the lower extremity are, the external and internal rounded 
eminences, and between them, behind, a deep notch for the passage 
of the great artery, vein, and nerve of the leg. Its use is obvious. Its 
substance is compact on the outside, spongy in the extremities, and 
fatticed internally. 
SHIN BONE. 
Situated in the inner side of the Jeg, between the knee and the 
foot, and.is long, thick and-triangular. ‘The eminences are, its upper 
head ; the spine of the shin bone, to which the great ligament of the 
knee-pan is fixed ; and the lower head, which forms the inner ancle. 
The cavities are, two joint canals, in the upper head, for the recep- 
tion of the double head of the thigh bone; and the joint cavity at 
the side of the head, for the reception of the outer-shin bone. Its 
use is to support the leg, and serve for the bending of the lower ex- 
tremity. This bone is connected to the thigh bone and knee-pan by 
hinge, to the outer-shin bone by intervening muscles, and to the 
ancle bone by ball and socket. : 
THE OUTER-SHIN BONE, 
Is situated in the outer part of the leg, by the side of the shin 
bone. It is small, long and irregular inshape. The eminences are, 
the head of the upper end, and the outer ancle at the lower end. It 
is connected by a long ligament to the shin, and by its heads and 
cavities fitting. It forms a fulcrum for the shin bone, and helps to 
form the leg. : ; ; 
KNEE-PAN: 
This flat bone covers the fore part of the knee joint, and is placed 
between the eminences of the thigh, and above the shin bone. Its 
+ shape resembles the common figure of a heart, with the point down- 
_ wards. It is connected to the thigh bone by hinge, and to the shin 
bone by strong ligaments. Its use is te strengthen the knee joint, 
and to serve as a common pulley for the extending muscles of the leg. 
BONES OF THE INSTEP. 
These bones are placed between the leg and long bones of the foot, 
are seven in number, and in a double row, forming the ancle. In | 
the first row are the ancle bone and heel bone; and inthe second. ~ 
row are the ship bone, the square bone, and three wedge es; 
which are placed close to one another. The eminences are the head — 
_ Of the ancle bone and the protuberance of the heel, ‘Their use is to _ 
_ form the base of the foot, and serve for its motion. 22 
: set ‘ a 4 : . 
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