Body Systems

1. Integumentary System

1.1. Skin- Protects internal body from outside world

2. Digestive System

2.1. Small Intestine- Where most chemicals digest and nutrients are absorbed

2.2. Large Intestine- Removes water from food that cannot be digested

2.3. Stomach- Stores and mechanically mashes and disinfects food

2.4. Pancreas- Synthesis of digestive enzymes

3. Skeletal System

3.1. Bone- Provides support and protection to internal organs, and creates a system of levers that allows for movement

3.2. Ligament- Attaches bone to bone

3.3. Tendon- Attaches muscle to bone

4. Respiratory System

4.1. Bronchi- Air passageways within lungs

4.2. Trachea- Airway from mouth/nose to the lungs

4.3. Lungs- O2 and CO2 are exchanged with blood

5. Nervous System

5.1. Brain- Sends, interprets, and receives messages

5.2. Spinal Cord- Transmits neurons up into the brain

5.3. Nerves- Carries messages all over the body

6. Muscular System

6.1. Cardiac-Muscle that pumps blood into blood vessels

6.1.1. Heart-pumps blood

6.2. Skeletal- muscle that moves skeleton

6.3. Smooth/Visceral- Muscle that moves fluid through tubes in digestive system

7. Lymphatic System

7.1. Lymph-Fluid containing white blood cells that fight infection

7.2. Thymus- Produces T-cells(WBC's) that fight infection

7.3. Spleen- Filters blood, stores RBC's, and helps detect foreign substances

8. Circulatory System

8.1. Blood Vessels-Carries blood to all tissues of the body

8.2. Heart- Pumps blood

8.3. Blood- Transports nutrients, gasses, and hormones

9. Endocrine System

9.1. Pancreas- Secretes hormones that regulate the amount of glucose in the blood

9.2. Thyroid- Regulates growth and metabolism

9.3. Thymus- Makes T-cells that fight infection

9.4. Ovaries/Testis- Secretes hormones that regulate puberty

9.5. Hypothalamus and Pituitary Gland- Regulates growth and metabolism