Term

What belongs to gross anatomy and what is it?

Definition

Gross anatomy can be seen with the naked eye. It's the compact/cortical bone (hard outer "shell" of the bone) and trabecular bone (looks a bit like a sponge, blood cells are made there).

Term

What is the molecular structure of the bone?

Definition

Collagen (30%) -> gives the bone flexibility, organic component. Hydroxyapatite (70%) -> gives the bone strength, inorganic component. Both collagen and hydroxyapatite creates optimal combination of hardness and elasticity.

Term

How does the bone remodel?

Definition

3 bone cells. Osteocytes: living bone cell (communication). Osteoblast: bone-forming cells (creates new bone). Osteoclast: bone resorption (eats away the old bone). 10% of the skeleton each year. Bone is a living tissue.