ANSWERS GRADED A+
1. Diaphysis - ---Correct Answer ---✔✔ shaft or main midsection
of a long bone
2. Osteoblasts - ---Correct Answer ---✔✔ bone forming cells that
secrete matrix
3. Osteoclasts - ---Correct Answer ---✔✔ large cells that break
down bone matrix (resorption)
4. Osteocytes - ---Correct Answer ---✔✔ mature bone cells that
maintain the matrix
5. Compact Bone - ---Correct Answer ---✔✔ dense, hard outer
layer of bone that provides strength
6. Spongy Bone - ---Correct Answer ---✔✔ porous inner layer
containing trabeculae and red marrow
7. Red Bone Marrow - ---Correct Answer ---✔✔ site of
hematopoiesis (blood cell formation)
8. Yellow Bone Marrow - ---Correct Answer ---✔✔ stores fat
(adipose tissue) and can convert to red marrow if needed