GCSE PE EDEXCEL SKELETAL SYSTEM

• MOVEMENT

Joints (BONE TO BONE) and Tendons (BONE TO MUSCLE) allow a variety of movements

• SUPPORT

The skeletal system supports the body in a variety of positions: complex (eg a handstand) and simple (eg sitting down)

The skeletal system give the body shape and acts as a framework

• PROTECTION

The skeletal system prevents the vital organs from getting damaged 

Eg, the cranium protects the brain

• FIXED

Eg Cranium/Skull

• SLIGHTLY MOVEABLE

Eg Vertebrae

• SYNOVIAL/FREELY MOVEABLE

Eg Shoulder

• BALL AND SOCKET

Movement in all direction, eg, shoulder 

• HINGE

Flextion and extention only, eg, knee 

• TENDONS

Connects muscle to bone, used for joint stability

• LIGAMENTS

Connects bone to bone

• CARTILAGE

Covers the end of the bone to prevent rubbing and also acts as a shock absorber 

• FLEXTION

• EXTENTION

• ABDUCTION (Abducted by aliens)

• ADDUCTION (Adding to your body)

• ROTATION

• INCREASED BONE DENSITY

• LIGAMENTS AND TENDONS GET STRONGER

• REDUCED RISK OF OSTEOPOROSIS (brittle bones) 

• INCREASED JOINT FLEXABILITY 

• INCREASED BONE STRENGTH

• FRACTURES

Simple, compound, open and stress

• DISLOCATION

When the bone is forced out of its normal position

• TENNIS AND GOLFERS ELBOW

Overuse

• SPRAINS

Damaged ligament

• TORN CARTILAGE

• RICE 

Rest Ice Compression Elevation 

This reduces swelling