The human body

By: Keeley

The circlatory system

The circulation system serves as a transportation system to move food and oxygen to each cell and take away cell waste. The parts of the circulatory system are the heart, blood, arteries, capillaries, and veins. The heart is a muscle that pumps blood in and out of your body. Blood is a red substance that go's around the human body and brings out waste and carbine dioxide, then brings in oxygen. An artery is a blood vestal that carry's blood to and from that heart. Capillaries are tiny blood vestals that pass blood from the arteries into the veins. A vein is an elastic blood vestal that transport blood from various regions of the body.
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Circulatory system

The Respiratory System

The function of the restpitory is to breathe in oxygen and exhales carbon dioxide. The parts of the respiratory system are lungs, sinus cavity, trachea, bronchioles, brochiol tubes, air sacs, diaphragm. A sinus cavity is in the nose, ears, and your throat. Lungs are organs that take in oxygen from the air. The trachea is an air passage way to the lungs. Bronchioles are another air passage that passes though your nose and mouth. There are a right and a left bronchus that branch into smaller secondary and tertiary bronchi which branch off into smaller tubs. The air sacs, also known as alveolus, are the terminal ends of the respiratory system where gas exchanges with air. A diaphragm a thin layer of muscle.
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Respiratory System

The Digestive System

The digestive system is used to break down food so nutrients can be carried by the blood to each cell in your body. The parts of the digestive system are teeth, tongue, epiglottis, esophagus, stomach, colon, large intestines, small intestines. You chew food with your teeth and your tongue helps you taste and swallow the food.The small intestine is a muscular tube which extends from the lower end of your stomach to your anus, the lower of the digestive tract and the large intestine is much broader than the small intestine takes a much straighter path through your belly, or abdomen. The esophagus is a muscular tube connecting the throat with the stomach. The colon, also called the large bowl or large intestine, and the rectum are parts of the digestive tract. A epiglottis is a flap of cartilage at the root of the tongue, which is depressed during swallowing to cover the opening of the windpipe.
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Digestive System -Human Body for Kids-How Body Works-