The functions of a skeleton
- Created by: Abiloola
- Created on: 09-03-20 17:32
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- Functions of the skeleton
- The protection of vital organs
- Bones are extremely strong
- Ribs protect lungs and heart
- Muscle Attatchment
- Muscles are attached bones at each end by a thick tendon
- When the muscles contract, they exert a force on the bones.
- Cartilage
- Cartilage is a firm tissue that is softer than bone
- It acts as a shock absorber between bones
- Joints for movement
- Fixed joints
- No space between the bones
- Therefore, no movement is possible
- Example: Skull
- Therefore, no movement is possible
- No space between the bones
- Slightly moveable joints
- Separated by the cartilage
- allow small amounts of movement
- Vertebral column
- allow small amounts of movement
- Separated by the cartilage
- Freely moveable joints
- contain a membrane that surrounds the joint
- The knee
- contain a membrane that surrounds the joint
- Fixed joints
- Platelets, Red blood cells, white blood cells
- The bones produce platelets
- Which help blood to clot when skin is damaged.
- They are tiny cells with no nucleus
- Which help blood to clot when skin is damaged.
- Red and white blood cell production
- Bones are responsible for blood cell production
- R+W blood cells destroy viruses and bacteria
- produced in bone marrow
- (R) Carry Oxygen
- carried In red haemoglobin to where it is needed
- The bones produce platelets
- The protection of vital organs
- Red Blood Cells
- Carry Oxygen
- Oxygen carried through red haemoglobin
- Only have space for haemoglobin
- No Nucleus
- White Blood Cell
- Vital for protection against disease and infection
- White blood cells have a nucleus
- Calcium and phosphorus
- make bones and teeth strong
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