Anatomy
How many bones are in the adult human skeleton?
206 bones
What is the primary function of red bone marrow?
Produces blood cells (hematopoiesis)
Which cells build new bone?
Osteoblasts
Which disease causes bones to become weak and porous?
Osteoporosis
What are the two divisions of the skeletal system?
Axial skeleton and Appendicular skeleton
Which mineral is stored in bones the most?
Calcium
Which cells break down bone?
Osteoclasts
Which disease results from vitamin D deficiency in children?
Rickets
Which bone is the longest and strongest bone in the body?
Femur
What hormone increases blood calcium by stimulating osteoclasts?
Parathyroid Hormone (PTH)
Which cells maintain mature bone tissue?
Osteocytes
Which disease causes cartilage to wear away, leading to joint pain?
Osteoarthritis
Which bone protects the brain?
Skull (Cranium)
What process continuously removes old bone and replaces it with new bone?
Bone remodeling
Which bone cells are responsible for bone growth after a fracture?
Osteoblasts
Which disease causes soft bones in adults due to vitamin D deficiency?
Osteomalacia
Name the five classifications of bones.
Long, Short, Flat, Irregular, Sesamoid
Name the four stages of fracture healing.
Which two bone cells work together during bone remodeling?
Osteoblasts and Osteoclasts
This tissue is found inside spongy bone and is responsible for producing red blood cells, white blood cells, and platelets.
Red Bone Marrow