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Living Organisms

5th Grade Body Systems

TermDefinition
Skeletal System Gives your body structure and protects yours organs
Muscular System Allows your body to move
Digestive System Breaks down food so it can be used by the body
Respiratory System Takes in oxygen from the air
Nervous System Controls all of the other systems in the body
Circulatory System Carries oxygen, food, and waste throughout the body
Arteries Carry oxygen rich blood throughout your body
Veins Carries blood back to the heart
Heart Pumps blood through blood vessels
Esophagus A tube that is connected to the stomach
Stomach Mixes food with chemicals to break it down
Small Intestine Absorbs nutrients from food
Large Intestine Absorbs water from food
Brain Collects information and makes decisions
Spinal Cord Main pathway for messages between the brain and the rest of the body
Nerves Carry messages from inside or outside the body
Muscles Pull the bones to produce movement
Trachea Moves air down your throat
Unicellular an organism made up of only one cell
Multicellular an organism made up of more than one cell
System a group of parts that work together
Cell the smallest part of a living thing that can carry out all the processes of life
Created by: beroth