Why is spongy bone so spongy?

Question:

Why is spongy bone so spongy?

Spongy Bone:

Spongy bone is another name for cancellous bone, which is found at the ends of the longer bones in your body, as well as in the pelvis, ribs, and vertebrae. Children have more cancellous bone than adults because as they grow the cancellous bone slowly hardens into cortical bone.

Answer and Explanation:

Cancellous bone is called 'spongy bone' because it is very porous and resembles a sponge. It is spongy because of the presence of red bone marrow,...

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Cancellous Bone: Definition, Structure & Function

from FTCE Middle Grades General Science 5-9 (004): Test Practice & Study Guide

Chapter 16 / Lesson 15
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