The Human Skeleton Flashcards
1
Q
How many bones is our skeleton made up of?
A
200
2
Q
What are the four main functions of our skeleton?
A
- Support: it holds us upright and provides a framework for tissues and organs
- Protection: the heart and lungs are protected by the rib cage
- Movement-takes places when muscles move bones at joints
- Making blood cells: red and white blood cells are made inside the bone marrow
3
Q
What is ossification?
A
The skeleton starts off as being cartilage. It is then slowly replaced by the addition of calcium and phosphorus.
