Muscles and Joints.

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Presentation transcript:

Muscles and Joints

What Makes Up a Joint? When two or more bones meet at a certain point.

Types of Joints Pivot joint Ball and Socket joint Saddle Joint Hinge Joint Gliding Joint

What is INSIDE a Joint? Ligaments: -Connects bone to bone -The less ligaments you have in a joint, the greater range of motion you have. Cartilage: -A soft tissue at the ends of bone that acts as a type of padding. -Prevents the bones from rubbing together. Synovial Fluid: -Lubricant for your joints

Working Together Skeletal system and muscle system work together for body movement -Muscles PULL on bones to lift arms and legs -Pull on bones with the help of anchors called tendons. More than 1 muscle is needed for movement. -When 1 muscle tightens the other relaxes

Muscles 3 Types of muscles: Smooth muscle- Found in organs such as the stomach. Cardiac muscle- Found in the walls of the heart, involuntary. Involuntary movements, meaning, they contract on their own. Skeletal muscle- Attached to the skeleton, voluntary. 640 skeletal muscles in your body. Slow twitch muscles helps with long distance exercise, fast twitch muscles fatigue faster, but are used for powerful bursts of movement.

https://www.youtube.com/watch?v=Uxwh2IIg_Z0

Exercise and Your Muscles Stretching: Improves range of motion A lack of flexibility can cause movement to become slower and less fluid, making an individual more susceptible to injuries. Improvement in balance and coordination Stretching lower back, shoulders, and chest muscles can improve posture. Increases blood flow, which can then reduce muscle soreness, and ensures a speedy recovery from muscle or joint injuries.

Exercise and Your Muscles continued… Building Muscle Protein is made up of amino acids, amino acids are the building blocks of your muscles. Without protein it would be impossible to build and repair muscles. Lactic Acid Produced during long and intense exercise. Byproduct that causes muscle fatigue and soreness.