BCT Lab Practical 1 Practice Test

The porous, lattice-like network of bone tissue is spongy bone. This structure is built from a web of thin plates and rods called trabeculae that create many small spaces. The result is a lightweight yet strong framework that can absorb and distribute forces in multiple directions. Spongy bone is found where the bone needs to be less dense, such as the ends of long bones and the interior of vertebrae, and its spaces often house red bone marrow involved in blood cell production. In contrast, compact bone is dense and solid, organized into tightly packed units called osteons, which gives maximum strength with less space. Lamellar bone refers to the orderly, layered arrangement of collagen fibers found within mature bone; it can be part of either bone type, but it doesn’t describe the porous, trabeculae-filled architecture itself. Dense or compact bone lacks the lattice-like porosity described here, so the correct match for a porous, lattice-like arrangement of trabeculae is spongy bone.