Which bone is spongy and found inside bones?

Which bone is spongy and found inside bones?

• A. Trabecular bone
• B. Woven bone
• C. Cortical bone
• D. Compact bone

Answer: (A)

Spongy bone refers to trabecular bone, also called cancellous bone. It forms a porous, lattice-like interior of bone made up of thin columns called trabeculae, which keeps the bone light while still providing strength and a space to house red bone marrow. This spongy network is typically found inside bones—especially at the ends of long bones and within the vertebral bodies—where there is higher metabolic activity. The outer, dense shell of a bone is cortical (compact) bone, not spongy, and woven bone is an immature form found during development or repair, not the normal interior structure. So the tissue that is spongy and found inside bones is trabecular (cancellous) bone.

Spongy bone refers to trabecular bone, also called cancellous bone. It forms a porous, lattice-like interior of bone made up of thin columns called trabeculae, which keeps the bone light while still providing strength and a space to house red bone marrow. This spongy network is typically found inside bones—especially at the ends of long bones and within the vertebral bodies—where there is higher metabolic activity. The outer, dense shell of a bone is cortical (compact) bone, not spongy, and woven bone is an immature form found during development or repair, not the normal interior structure. So the tissue that is spongy and found inside bones is trabecular (cancellous) bone.