GENERAL HISTOLOGY

Detailed explanation-1: -Long bones have a long longitudinal axis (Figure 1). Short bones have a short longitudinal axis and are more cube-like. Flat bones are thin and curved such as some of the bones of the skull. Irregular bones are often found in groups and have a variety of shapes and sizes.

Detailed explanation-2: -A long bone is longer than it is wide, has expanded articulating ends, and contains a hollow, central medullary (marrow) cavity.

Detailed explanation-3: -Long bones are hard, dense bones that provide strength, structure, and mobility. The thigh bone (femur) is a long bone. A long bone has a shaft and two ends. Some bones in the fingers are classified as long bones, even though they are short in length.

Detailed explanation-4: -The ends of a long bone contain spongy bone and an epiphyseal line. The epiphyseal line is a remnant of an area that contained hyaline cartilage that grew during childhood to lengthen the bone.