Body Systems
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Digestive System
-Digests food into smaller molecules & absorbs nutrients
Circulatory System
-Transports materials to & from cells
Nervous System
-Sends signals all across the body to control it
Excretory System
-Removes waste products from cellular metabolism & filters blood
Respiratory System
-Takes in oxygen & removes carbon dioxide & water
Skeletal System
-Protects organs -Provides structural support for the body -Produces blood cells -Allows movement -Stores materials (fats, minerals, etc.)
Muscular System
-Allows for movement by contraction
Endocrine System
-Regulates body activities (homeostasis) via hormones
Immune System
-Fights of foreign invaders in the body
Integumentary System
-1st barrier of defense against infection -Regulates body temperature -Removes excretory waste via glands (sweat glands, etc.) -Protects against UV rays -Produces vitamin D
Lymphatic System
-Stores & carries WBCs that fight disease -Collects excess fluid & returns it to blood (2nd circulatory system (can go places other can’t))
Reproductive System
-Allows organisms to reproduce