System | Major Parts | Function/Facts |
Excretory/Urinary | Kidneys, Bladder, Ureters | Gets rid of excess waste water from the body |
Respiratory | Nasal Cavity, Pharynx, Larynx, Trachea, Bronchi, Lungs, Alveoli | Gets oxygen into the body and gets carbon dioxide out |
Integumentary | Skin, Hair, Fingernails, Toenails | Outer covering of body, first line of defense to pathogens, protects everything |
Muscular | Muscles, Tendons | Moves the body, lines other organs |
Skeletal | Bones, Cartilage, Ligaments | Protects and supports organs, gives shape to the body, stores calcium, makes red blood cells |
Circulatory/Cardiovascular | Heart, Blood, Blood Vessels, Red Blood Cells | Moves oxygen & nutrients to cells using blood, removes carbon dioxide & wastes from cells |
Reproductive | Testes (Male), Ovaries (Female) | Allows organisms to pass on life. Produces sex cells (23 chromosomes) that join in fertilization (46 chromosomes). |
Digestive | Mouth, Esophagus, Stomach, Small & Large Intestines, Liver, Pancreas, Gall Bladder, Rectum, Anus | Breaks down food to a form that cells can use and absorbs it into the blood/body |
Endocrine | Pituitary Gland, Thyroid Gland, Adrenal Glands, Pancreas | Produce hormones (chemicals) to control activities in the body |
Lymphatic | Lymph Nodes, Tonsils, Spleen, Lymphatic Vessels | Carries fluid away from tissues and into the lymphatic capillaries - these fluids return to the blood |
Immune | Tonsils, Skin, White Blood Cells, Mucus, Stomach Acid | Defends body from pathogens - several body systems working together |
Nervous | Brain, Nerves, Spinal Cord, Senses | Controls everything in the body - the boss |