Chapter 1a Keywords 4.5 / 5 based on 3 ratings ? Physical EducationSkeletal system - bones and jointsGCSEAQA Created by: Zenna EvershedCreated on: 12-01-18 09:59 Support Bones keep us upright and hold muscles and organs in place 1 of 30 Protection Some bones surround and protect vital organs from damage 2 of 30 Long bones The bones of the legs and arms. Long bones support the weight of the body and help with gross movements 3 of 30 Movement Muscles contract to pull the bones of the skeleton 4 of 30 Red blood cells Carry oxygen to muscles 5 of 30 White blood cells Fight infections 6 of 30 Plasma The fluid part of the body that carries the other components throughout the body 7 of 30 Platelets Tiny cell fragments that clump together to help blood clot and stop bleeding 8 of 30 Joint Place where two or more bones meet 9 of 30 Synovial joint Type of joint commonly found in the limbs; contains a synovial membrane that produces synovial fluid 10 of 30 Cartilage Covers ends of bones providing a smooth, friction-free surface 11 of 30 Synovial fluid Produces by the synovial membrane to lubricate the joint 12 of 30 Capsule Tough fibrous tissue - surrounds synovial joints; usually supported by ligaments 13 of 30 Ligaments Join bone to bone 14 of 30 Dislocation When the bones of a joint separate from their normal position 15 of 30 Bursae Fluid-filled bag that helps reduce friction in a joint 16 of 30 Tendon Attaches muscles to bones 17 of 30 Hinge joint Joint that allows flexion and extension 18 of 30 Flexion Movement where angle between bones reduces 19 of 30 Extension Movement where angle between bones increases 20 of 30 Vertebrae Bones that form the spine or backbone 21 of 30 Ball and socket joint Joint that allows many movements - flexion and extension; abduction and adduction; and rotation 22 of 30 Range of movement A measure of the flexibility of a joint in terms of the different movements allowed 23 of 30 Abduction Movement where limbs are moved away from the body 24 of 30 Adduction Movement where limbs are moved back towards the body 25 of 30 Rotation Turning a limb along its long axis 26 of 30 Meniscus Cartilage acting as a shock absorber between the tibia and femur in the knee joint 27 of 30 Cruciate ligaments Attach tibia to femur in the knee joint 28 of 30 Plantar flexion Movement at ankle where the toes are pointed towards the ground 29 of 30 Dorsiflexion Movement at ankle where the toes are pulled up towards the knee 30 of 30
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