Hydroxyapatite crystals are packed into bone marrow, giving bone its hardness. These crystals are composed of calcium and phosphate, which make bone hard.
A) Both statements are true.
B) The first statement is true; the second is false.
C) The first statement is false; the second is true.
D) Both statements are false.

Question

Quizplus · Accepted Answer

Hydroxyapatite crystals are packed into the ground substance and fibers between the cells, giving bone its hardness. Bone marrow is the spongy bone tissue that is found in the middle of bone. It is called spongy or cancellous bone.

Hydroxyapatite Crystals Are Packed into Bone Marrow, Giving Bone Its