The Muscular System 0.0 / 5 ? Health & Social CareAnatomy and physiology in practiceA2/A-levelOther Created by: candicelouiseCreated on: 02-04-18 23:55 Functions of the Musculo-Skeletal System Support Movement Protection 1 of 6 Structures Muscles Bones (skeleton) 2 of 6 Skeletal Muscles Voluntary muscles Attached to bones of the skeleton Muscles can contract and relax Bring about movement of the skeleton 3 of 6 Actions of Skeletal Muscles Extensors – open a joint Flexors – close a joint Adductors move a body part inwards Abductors move a body part outwards Levators raise a body part Depressors lower a body part Contrictor (sphincter) close an opening 4 of 6 Synovial Joint Synovial membrane - secretes synovial fluid Synovial fluid – lubricates the joint Cartilage – smooth surface to end of bones and cushions joints Tendons – joint muscles to bones Ligaments – join bone to bone 5 of 6 Types of Joint Ball and socket - hips and shoulders Hinge – elbow and knee Pivot – head at the top of the spine Gliding/sliding – wrist and ankles Fixed – skull 6 of 6
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