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7.12B Body Systems

Identify the main functions of the systems of the human organism.

TermDefinition
Circulatory System Distributes blood to carry oxygen and nutrients to cells all over the body and carries away carbon dioxide and waste. Major Organs: Heart, blood vessels, blood
Respiratory System Absorbs oxygen and releases carbon dioxide. Major Organs: Lungs, trachea, bronchioles
Digestive System Breaks down food and absorbs nutrients. Major Organs: Stomach, intestines
Nervous System Controls the body's actions and responds to changes. Also includes the five senses. Major Organs: Brain, spine, nerves
Skeletal System Gives body structure needed for movement and protects internal organs. Produces blood cells in bone marrow. Main Organs: Bones, cartilage
Muscular System Responsible for voluntary and involuntary movement. Main Organs: Muscle tissue
Endocrine System Glands that produce hormones to maintain balance and control development. Main Organs: Thyroid, pituitary, adrenal, reproductive organs
Integumentary System A protective barrier around your body that helps prevent water loss and control body temperature. Major Organs: Skin, hair, nails
Immune System Antibodies and white blood cells that protect your body from infection. Major Organs: Spleen, bone marrow, thymus, lymph nodes
Reproductive System Produces gamete cells (eggs and sperm) needed for sexual reproduction. Major Organs: Vagina, uterus, ovaries, penis, testes
Excretory System Removes waste from the body and helps prevent buildup of excess fluid. Major Organs: Kidneys, ureters, bladder
Created by: khedlund