GENERAL HISTOLOGY

Detailed explanation-1: -The bone marrow makes blood cells and stores fat. Spongy bone (also called cancellous bone) is made up of small, needle-like pieces of bone arranged like a honeycomb.

Detailed explanation-2: -Spongy bone is found mostly at the ends of bones and contains red marrow. Bone marrow is found in the center of most bones and has many blood vessels. There are two types of bone marrow: red and yellow. Red marrow contains blood stem cells that can become red blood cells, white blood cells, or platelets.

Detailed explanation-3: -There are two basic types of osseous tissue in bones in varying proportions. They are compact (or dense) and spongy (or cancellous) bone. Compact bone is smooth, homogenous, and dense. Spongy bone has lots of needle like pieces called trabeculae and lots of spaces.