Anatomy is a Science which explains the structure and use of 
every part of the human body. It is divided into nine parts, 
namely : 
NERVES, 
GLANDS, 
eg VISCERA, 
* FLUIDS. 
DOCTRINE OF THE BONES. 
_ Bones are hard substances composed of phosphate and carbonate 
of lime, cemented by gelatin, which support and form the stature 
of the body, defend the bowels, and give adhesion to the muscles. 
Their substance, in the long bones is compact, in the extremities ef 
these bones spongy ; in the interior of the marrow bones, net-like, 
or latticed. In shapethey are various. Long and irregular-shaped __ 
bones are divided into a body and extremities, and flat bones intoa 
body and margins, Bones are variously named; some from their — 
situation, as the forehead, nose bone, &c.; others from their shape, 
as the wedge bone, in the bottom of the skull; some from their use, 
asthe jaw bone. The processes and cavities of the bones are 
named from their figure, as the tooth-like process, the saucer cay! 
ties, &&c. An artificial skeleton is when the bones are hung 
ther with a wire, ora natural, when they are kept to 
ame a_i 
