Musculoskeletal system

Question 1

Spine

Answer 1

Each bone is called a vertebrae
Cartilage in between each vertebrae to cushion them during movement

Question 2

Joints

Answer 2

Structures that connect individual bones and allows bones to move against each other to cause movement
Fibrous joints
Cartilaginous joints
Synovial joints

Question 3

Ligaments

Cartilage

Synovial membrane

Synovial fluid

Answer 3

Connect one bone to another

Protects the ends of the bones

Produces the lubricant synovial fluid

Lubricates joint capsule

Question 4

Muscles

Answer 4

Contract to allow bones to move
Paired together antagonistically - when one muscle pair contracts, the other relaxes. e.g. biceps and triceps

Question 5

How do muscles work

Answer 5

Muscles are made of fibres, these fibres contain filaments which slide over each other when a muscle contracts (sliding filament theory).
One filament is thick, the other is thin. The filaments slide over each other which causes the muscle to contract.