Karteikarten

Skeleton

jordan.eustace Science Junior Certificate Englisch 4 Karten

Karten in diesem Stapel (4)

1Cartilage-prevents bones from rubbing off each other A fluid-lubricates and cushions the joint Ligament=connect one bone to another Muscles contract and relax to bring about movement of musclesTendons=connect muscle to bone
Anatognistic muscles work opposite each other to bring about movement
E.g. biceps and triceps
2The eyes allow us to detect light and distinguish colours eyes can do this because the have special sensory cells which are found in the retina.
3The skeleton is made up of bones (200 bones).Three main functions of the skeleton:support,movement and protection.
41.Support-without bones our bodies would collapse 2.Movement-bones together with muscles allow us to move about 3.Protection-skull protects the brain,rib cage protects heart and lungs,backbone protects spineJoint=formed where 2 bones meet
function:to allow movement
Fused join=joint where there is no movement e.g. the skull
Ball and socket joint=allows movemnt in many directions e.g. the hip
Hinged joint=movement in 1 direction e.g. knee