Quick Write List three organ systems and describe their function. How does their function help maintain homeostasis?
Body Systems
11 Organ Systems Nervous Integumentary Skeletal Muscular Circulatory System System System System System
Top (from left to right) Respiratory System Digestive System Excretory System Bottom (from left to right) Endocrine System Reproductive System Immune System
Nervous System Central Nervous System (CNS) Brain Spinal Cord Peripheral Nervous System (PNS) All other nerves Functions? Recognizes and responds to stimulus
Integumentary System Skin, hair, nails, etc. Functions? Protective barrier Environment Sunlight
Skeletal System Bones, cartilage, etc. Functions? Structure Support Protection Movement Makes blood and Stores fat
Muscular System Muscles Functions? Movement Circulates Blood Helps with Digestion
Circulatory System Heart, blood vessels Functions? Supplies cells with oxygen and nutrients Removes waste(CO2)
Respiratory System Nose, trachea, lungs, etc. Functions? Provides oxygen Removes carbon dioxide
Digestive System Mouth, stomach, intestines, etc. Functions? Accessory Organs Liver, Pancreas, Gall Bladder Functions? Converts food into nutrients the cells can use Eliminates waste
Excretory System Kidneys, bladder, urethra, etc. Functions? Eliminates waste Maintains Blood Pressure
Endocrine System Pituitary gland, adrenals, pancreas, etc. Functions? Growth Development Metabolism
Reproductive System Male Female Functions? Produce reproductive cells Urethra, testes, etc. Female Ovary, uterus, etc. Functions? Produce reproductive cells Nurture and protect developing embryo (females only)
Immune System White blood cells, lymph nodes, etc. Functions? Protect from infection Helps balance fluids