Muscular System. 0.0 / 5 ? Physical EducationMuscular systemGCSEAQA Created by: allybalfourCreated on: 26-04-18 18:23 Sternocleidomastoid. Helps with the breathing process. 1 of 13 Deltoid. Abduction of the shoulder (moving the arm outwards and away from the body) 2 of 13 Rotator cuffs. A group of stabilising muscles of the shoulder which helps to prevent dislocation and allows the shoulder to rotate the humerus around its own axis. 3 of 13 Pectorals. Adduction of the shoulder (moving the arm towards the body). 4 of 13 Intercostals. Assist with the breathing process. 5 of 13 Triceps. Extend the elbow (straightening the arm). 6 of 13 Biceps. Flex the elbow (bending the arm). 7 of 13 Abdominals. Flex the trunk across the stomach (sitting upwards). 8 of 13 Latissimus Dorsi. Shoulder adduction (moving the arm towards the body) Shoulder horizontal extension. 9 of 13 Quadriceps. Extend the knee (straightening the leg). 10 of 13 Hamstrings. Flex the knee (bending the leg). 11 of 13 Gastrocnemius. Plantar flexion of the ankle (pointing the toes downwards). 12 of 13 Tibialis Anterior. Dorsiflexion of the ankle (bringing the toes up towards the shin). 13 of 13
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