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Body Systems

Circulatory System Uses blood and vessels to bring oxygen to cells and CO2 away from cells.
Digestive System Breaks down food particles into pieces that can be used by the body.
Nervous system Sends information back and forth from the brain to all parts of the body.
Respiratory System Brings air into and out of the lungs, delivering oxygen to and CO2 away from the body.
Immune System Protects the body against harmful toxins and microorganisms.
What are tissues made of? Cells
What are organs made of? Tissues
Level of organization in organisms from least to most complex. Cells > Tissue > Organ > Body System
What are parts of the digestive system? Small intestine, stomach, liver, and esophagus.
What are parts of the cardiovascular system? Heart, blood, and blood vessels.
What are parts of the immune system? Red bone marrow, spleen, and lymphatic system.
What are parts of the respiratory system? Pharynx, trachea, bronchi, and lungs.
What are parts of the nervous system? Brain, spinal cord, and nerves.
What two systems work together to bring oxygen to the body? Circulatory and respiratory.
Created by: cook2sm



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