Muscular System & Joints Lesson 2 PDF

The Muscular System Learning Intention: Understand the structure and function of the Muscular system. Success Criteria: Be able to identify the main muscles and the movements that they produce.  B A Can you sta...

The Muscular System Learning Intention: Understand the structure and function of the Muscular system. Success Criteria: Be able to identify the main muscles and the movements that they produce.  B A Can you state the name of both these muscles? A tissue is made up of DEEPER THINKING: similar group of cells Muscles are a type of working together. Lots of tissue. Suggest what the muscle cells work together word tissue means.  The Muscular System Your teacher will give you some sticky labels. In groups of 3, label one person with the names of the muscles that have lines going to them. Try to use the anatomical name. ‘Arm’ is not a muscle. Skip to labelled diagram Front View Back View  The Muscular System These are the major muscles of the body… Deltoids Trapezius Pectorals Biceps Triceps Abdominals Latissimus Dorsi Gluteals Quadriceps Hamstrings Gastrocnemius Skip to labelled diagram Front View Back View In your booklet-write Agonist = The muscle that works to create the movement. Antagonist = the muscle that relaxes to allow the movement to occur. Fixator = A muscle which acts as the stabiliser and helps the agonist work effectively of one part of the body during movement of another part. The deltoid helps stabilize the bicep during a bicep curl.. JOINT MUSCLE PAIR MOVEMENT SHOULDER Trapezius AND DELTOID The MOVES ARM FORWARD, trapezius (traps) is a large BACKWARD AND TO THE triangular muscle at the SIDE back of your shoulder. It helps you lift and lower your shoulder. Deltoid: The deltoid muscle is on the outside of your shoulder. ELBOW BICEPS AND TRICEPS Extension: Straightening your arm out further away from your body to reach objects. Flexion: The opposite of extension — bending in your lower arm toward your body. KNEE QUADRICEPS AND Flexion and extension HAMSTRINGS Synovial joints Synovial joints (freely movable joints) allow us the free movement to perform skills and techniques during physical activity. The main purpose of synovial joint's is to prevent friction between the articulating bones involved in body movements https://www.youtube.com/watch?v=hE3ZO_fNIE0  The bursae are fluid sacs which help to prevent friction in the joint Cartilage (called articular cartilage) which cushions the joint and prevents friction and wear and tear between the bone ends aments connect bone to bone and help keep the joint together  Copy and complete the sentences. Use the SILENT STARTER keywords to help you. Keywords: pulls, joint, tendons, contracts, antagonistic 1. Muscles are attached to the bones by Deeper ___________. Thinking: 2. When a muscle shortens and ___________ on What is a bone. muscle 3. If the bone is part of a ________ this will cause strength? the bone to move. How can you measure it? 4. Pairs of muscles work together to control movement at a joint. They are called _______ muscles. 5 mins End  Keywords: pulls, joint, tendons, contracts, antagonistic 1. Muscles are attached to the bones by ___________. Tendons 2. When a muscle ______ it shortens and ___________ Contrac ts pulls on a bone. 3. If the bone is part of a ________ joint this will cause the bone to move. 4. Pairs of muscles work together to control movement at a joint. They are called _______ antagonistic muscles. Self-assess Score __/5  Question All Describe the difference between a tendon and a ligament. (2 marks) Some Explain in detail why two muscles are needed to bend and straighten a joint. Draw a diagram to help explain your answer (6 marks)  Question All Describe the difference between a tendon and a ligament. (2 marks) Tendons join muscle to bone, ligaments join bone to bone. Some Explain in detail why two muscles are needed to bend and straighten a joint. Draw a diagram to help explain your answer (6 marks) Arm Arm bends straightens Complete the missing word passage Muscles are attached to --------------------- by -------------. Muscles are arranged in pairs called a---------------- pairs. Muscles work by c-----------------------------They cannot p-------- When the muscle c------------------------it pulls on the bone. At the same time the other muscle in the pair r------------- The pull of the contracting muscle will cause m-------------- to occur at the j----------------.