Transcript Muscles and Joints

 When two or more bones
meet at a certain point.
Pivot joint
Ball and
Socket joint
Saddle Joint
Hinge Joint
Gliding 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
 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
 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
 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.
 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.