Three important systems in Three important systems in your body: Respiratory, your body: Respiratory,

Circulatory, and ExcretoryCirculatory, and Excretory

Think about these questions.Think about these questions.What are the parts of the repiratory system? What are the parts of the repiratory system? What is the respiratory system´s job?What is the respiratory system´s job?What are the movements of breathing?What are the movements of breathing?What are the parts of the circulatory What are the parts of the circulatory system? system? What does blood do?What does blood do?What are the three kinds of blood vessels?What are the three kinds of blood vessels?What are the parts of the excretory system?What are the parts of the excretory system?What do the kidneys do? Where are they?What do the kidneys do? Where are they?

The respiratory system…The respiratory system…Is responsible for Is responsible for breathingbreathingIncludes these organs: Includes these organs: nostrils, trachea, 2 nostrils, trachea, 2 bronchial tubes, and 2 bronchial tubes, and 2 lungslungsTakes in oxygen from Takes in oxygen from the air and passes it the air and passes it through our lungs and through our lungs and into our bloodinto our blood

BreathingBreathing

People breath in oxygen from the air.People breath in oxygen from the air.FirstFirst, oxygen enters the body , oxygen enters the body through the nose and mouth.through the nose and mouth.ThenThen it passes through the nostrils. it passes through the nostrils.NextNext the oxygen goes down through the oxygen goes down through the trachea and the bronchial tubes the trachea and the bronchial tubes and goes into the lungs.and goes into the lungs.FinallyFinally, it passes through the walls , it passes through the walls of the lungs into our blood.of the lungs into our blood.

Two movementsTwo movementsINHALATIONINHALATION and and EXHALATIONEXHALATION are are the two breathing movements.the two breathing movements.These two movements These two movements circulatecirculate, or , or move, the air through our respiratory move, the air through our respiratory system.system.When we When we inhaleinhale, or breath in, our lungs , or breath in, our lungs fill with air.fill with air.When we When we exhaleexhale, or breath out, the air , or breath out, the air leaves our lungsleaves our lungs

The Circulatory SystemThe Circulatory System

Is responsible Is responsible for moving for moving blood around blood around our bodyour bodyIncludes the Includes the heart and the heart and the blood vessels blood vessels (arteries, (arteries, veins and veins and capilllaries) capilllaries)