Answer:
The most common bone shape in the body is the ___long _ bone shape. One of the principal features is a shaft called a(n) _diaphysis____ that contains a hollow, cylindrical space inside called the ____medullary_____ cavity. In children, this cavity contains __red_____ bone marrow, which is later replaced by ___yellow____ bone marrow in adults. An end of these bones is called a(n) ___epiphysis___ . The other three bone shapes in the body generally have an external surface composed of ___compact_____ bone and the interior is composed entirely of __spongy______ bone.
Explanation: