Question

One of the basic histological differences between compact and spongy bone is that in compact bone, ________.

1) it contains osteons
2) it contains trabeculae
3) it is found in the diaphysis of long bones
4) it is found in the epiphysis of long bones

Answer 1

In compact bone, the presence of osteons, which are its structural units, marks the fundamental histological difference when compared to spongy bone, which is composed of trabeculae.

Step-by-step explanation:

One of the basic histological differences between compact and spongy bone is that in compact bone, it contains osteons. Compact bone, found in the shaft (diaphysis) of long bones and the surface of flat bones, is organized into subunits known as osteons. These osteons consist of a central Haversian canal surrounded by concentric rings of lamellae. In contrast, spongy bone, which is located in the end (epiphysis) of long bones, is made of tiny plates called trabeculae that serve as struts to provide strength to the bone. Therefore, the correct statement regarding compact bone is that it contains osteons.

One of the basic histological differences between compact and spongy bone is that in compact bone, it contains osteons. Compact bone is organized into subunits called osteons, which are aligned parallel to the long axis of the bone. These osteons are responsible for providing the bone with strength and support.