Muscular and skeletal system

• The bones are connected to the muscles by tendons.
• Muscular and skeletal system includes different types of joints.
• Synovial joints have cartilage at the ends of the bones and contain fluid to lubricate them.
• Ligament is a strong, flexible band of tissue that connects two or more bones at a joint.
• Joints can be classified as synovial or fibrous based on their structure.
• Tendon is a tough, fibrous band that connects muscle to bone or another muscle.
• The bones are connected by joints, which allow movement.
• Cartilage is a firm but elastic connective tissue found throughout the body.
• Nerves transmit electrical impulses between different parts of the body.
• Muscles generate force and move the body.
• Bones protect internal organs and support the body's weight.
• Cartilaginous joints lack true bony articulations but still permit some degree of motion.
• There are three main types of joints: hinge joints (e.g., knee), ball-and-socket joints (e.g., hip), and pivot joints (e.g., neck).
• Bones support and protect organs and provide attachment points for muscles.
• Fibrous joints do not allow movement between bones.
• The heart is made up of cardiac muscle, which contracts rhythmically to pump blood throughout the body.
• Smooth Joints
• Pivot Joints - Allows rotation around an axis
• Hinge Joints - Allows flexion/extension motion
• Gliding Joints - Allows gliding movements
• Saddle Joints - Allows flexion, extension, abduction, adduction, circumduction, and opposition
• Ball-and-Socket Joints - Allows all types of movement except axial rotation
• Ball-and-Socket Joints - Allows flexion, extension, abduction, adduction, circumduction, and medial and lateral rotation
• The bones that form the joint are called articulating bones.
• Plane Joints - Allows sliding or gliding motions
• Skeletal muscles are voluntary muscles, which means you can control what they do.
• Your leg won't bend to kick the soccer ball unless you want it to.
• Together, the skeletal muscles work with your bones to give your body power and strength.
• In most cases, a skeletal muscle is attached to one and helps control movements.
• Skeletal muscles are held to the bones with the help of tendons.
• Tendons are cords made of tough tissue, and they work as special connector pieces between bone and muscle.
• The tendons are attached so well that when you contract one of your muscles, the tendon and bone move along with it.
• Muscles work in one way.
• When the muscles contract, they become shorter and thicker and pull on the tendons which in turn pull on the bone that causes them to move.
• Most muscles work in pairs (biceps and triceps).
• Your biceps (top) causes your arm to bend at the elbow while the triceps (bottom) causes it to straighten.
• When one muscle contracts the other relaxes.
• A voluntary muscle can control movements.
• Feelings of fear can prevent these muscles from working properly.