B.1.1

Question 1

5 functions of a skeleton?

Answer 1

1. Protection of vital organs - The skeleton protects the most important internal organs from injury.
2. Storage
   
   • mineral homeostasis bones act as reservoirs storing vital minerals used for muscle contraction and nerve activity
   • energy storage, lipids stored inside yellow bone marrow
3. Blood Cell Production (haemopoeisis) - RBCs, WBCs and platelets produced in red bone marrow
4. Attachment point for muscles - bones connected by ligaments, muscles run from one bone to another
5. Shape / Support- skeleton serves as the structural framework for the body, each part bears the weight of all the structures above it

Question 2

Axial skeleton plus 4 functions?

Answer 2

• Comprised of the bones that run along the ‘axis’ of the body (cranium, ribs, sternum, vertebrae)

Function:
- Protection
- Attachment
- Movement
- Support

Question 3

Appendicular skeleton plus 5 functions?

Answer 3

• Comprised of the limb bones, shoulder girdle and pelvis.

Function:
- Mineral reservoirs
- Blood cell production
- Attachment
- Movement
- Support

Question 4

5 parts of vertebral column?

Answer 4

1. Cervical 7
2. Thoracic 12
3. Lumber 5
4. Sacrum 5
5. Coccyx 4