Unit 2 - Skeletal System

Question 1

there are 7!

What are the functions of the skeletal system?

Savvy Pimps Made Money Except Hoes’ Payment

Answer 1

1. Support: holding up the body, scaffolding for organs and muscles to attach to
2. Protection: skull protects the brain, thoracic cage protects the heart and lungs, etc.
3. Leverage for Movement: muscles contract to pull on bones
4. Mineral Storage: stores and releases calcium and phosphate as needed
5. Energy Storage: yellow bone marrow in bone cavities stores fat
6. Hemapoeisis: red bone marrow in bone cavities produces red and white blood cells and platelets
7. pH balance: helps regulate pH in the blood by absorbing bicarbonate ions

Question 2

What is the function of canaliculi in compact bone?

Answer 2

Communication; exchange of nutrients and waste

Question 3

What covers the external surface of the bone and how is it connected to the bone?

Answer 3

periosteum; connected by Sharpey’s fibers

Question 4

What lines the internal surface of the bone?

Answer 4

Endosteum