Skeletal and Muscular System

Skeletal System Interacts with muscular system for movement of the body Coordinated by nervous system

What is Cartilage? Cartilage is connective tissue that is more flexible than bone Cushions bones

Cartilage

Bones 1. Supports body 2. Protects Organs 3. Produce new red blood cells in the bone marrow

Bones 4. Enables you to move 5. Stores certain materials until your body needs them.

The 26 small bones that make up the backbone Vertebrae The 26 small bones that make up the backbone

What is a Joint? A joint is the place where two bones come together Joints help the skeleton move the body.

What are the two kinds of joints in the body? The two kinds of joints in the body are immovable and movable joints

What are the two main immovable joints in our bodies? Bones of the skull Joints that attach the ribs to the sternum

Immovable Joint

Where It’s Found in the Body Joint Kind of Motion Where It’s Found in the Body Hinge Forward or backward motion Knee Elbow Ball-&-Socket Greatest range of motion Shoulder Blade Hips Pivot One bone to rotate around another Neck Gliding One bone to slide over another Wrist Ankles

When do bone cells form new bone tissue? New bone tissue forms to fill the gap between the broken ends of the bone.

Ligaments The bones in movable joints are held together by strong connective tissues is called LIGAMENTS Connect bone to bone

Ligaments

Tendons Attach muscles to bones

Marrow The spaces in bone that contain a soft connective tissue is called MARROW

Bone Marrow

Muscles Motion of organs Locomotion of Body Interacts with all organ systems causing movement of tissues and organs

Muscular System

3 Types of Muscles

Skeletal Muscles Type of striated muscle, attached to the skeleton. Facilitate movement, by applying force to bones and joints; via contraction. Contract voluntarily, although they can contract involuntarily.

Skeletal Muscle

Cardiac Muscle Type of striated muscle found within the heart. Function is to "pump" blood through the circulatory system by contracting

Cardiac Muscle

Smooth Muscle Type of non-striated muscle, found in organs blood vessels, the bladder, the uterus, and the digestive system

Smooth Muscle

Arthritis Painful Inflammation of freely movable joints. Immune system attacks tissues around joints Symptom stiffening & swelling

Gout Systemic disease (throughout body) Build up of uric acid Settles in joints causing inflammation and swelling

Tendonitis Inflammation in the tendons

A condition in which the body’s bones become weak and break easily Osteoporosis A condition in which the body’s bones become weak and break easily