pe 0.0 / 5 ? AllallGCSEAQA Created by: Kt01Created on: 09-06-17 19:55 What is the fulcrum? The part of a lever system that pivots and joints are the fulcrum in the bodys lever system 1 of 19 What is the first class lever? The fulcrum lies between the effort and the resistance 2 of 19 What is the second class lever? The resistance lies in the middel of the effort and the fulcrum 3 of 19 What is the third class lever? The effort is located between the fulcrum and the resistance 4 of 19 What is the effort The force applied to move the resistance or weight 5 of 19 Resistance The load to be moved by a lever system and usually this involves weight. 6 of 19 What it an agonist? The prime mover, the muscle that causes movement 7 of 19 What is an antagonist? The muscle that relaxes to allow the agonist to contract. 8 of 19 What is a articulating bone? The bones either side of a joint 9 of 19 What is a concentric contraction? The muscle shortens as it contracts (lifting) 10 of 19 What is a eccentric contraction? When the muscle lengthens as it contracts. Used to contril downward movements (lowering a weight) 11 of 19 What is a isometic contraction? When muscles contract but remains the same length. It occurs in activities when body is held in a fixed position. Example handstand 12 of 19 What is flexion? Movement where the angle between bones decreases 13 of 19 What is extension? Movement where the angle between bones increases 14 of 19 What is plantar flexion? Movement at the ankle where the toes are pointed towards the ground 15 of 19 What is dorsi flexion? Movement at the ankle where the toes are pulled up towards the knee 16 of 19 What is rotation? Turning a limb along its axis 17 of 19 What is abduction? Moving away from the centre line of the body. Limbs moved away from the body 18 of 19 What is adduction? Adding to the centre line of the body 19 of 19
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