Human Body Systems
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| blood vessels that carry blood away from the heart | arteries
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| blood vessels that carry blood toward the heart | veins
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| tiny air sacs that exchange carbon dioxide for oxygen | alveoli
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| the large artery that carries oxygen-rich blood away from the heart | aorta
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| the large artery that carries oxygen-poor blood away from the heart to the lungs | pulmonary artery
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| the large vein that bring oxygen-rich blood toward the heart from the lungs | pulmonary vein
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| these tiny blood vessels connect arteries to veins | capillaries
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| the network of blood vessels that carry blood from the heart to the body cells and from the body back to the heart | Systemic Circulation
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| network of arteries and veins that supply all the cells of the heart blood | Coronary Circulation
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| network of blood vessels that carry blood back and forth from the heart to the lung; exchanges oxygen-poor blood for oxygen-rich blood | Pulmonary Circulation
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| the waste product created during cellular respiration | carbon dioxide
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| tiny hairlike structures that line the respiratory system to keep foreign objects from entering the pathway | cilia
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| tubelike passageway at the top of the throat that receives air, food, and liquids from the mouth or nose | pharynx
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| flap of tissue that keeps food and liquids from entering the respiratory system | epiglottis
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| these folds of tissue vibrate to make sound as air passes over them-vocal cards | larynx
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| largest vein in your body that returns blood from the lower part of your body to your heart | inferior vena cava
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| microscopic air sacs found at the end of the bronchioles where the exchange of carbon dioxide and oxygen take place | alveoli
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| large muscle that contracts and relaxes and moves air in and out of the lungs | diaphragm
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| the trachea branches into two narrower tubes called | bronchi
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| Made from capillaries and larger blood vessels that join and form veins | venules
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| the mechanical and chemical breakdown of food that your body can absorb and use | digestion
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| physical breakdown of food into smaller pieces through mashing, chewing, and grinding food | mechanical digestion
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| chemical reactions break down foods into small molecules | chemical digestion
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| Proteins that speed up the rate of chemical reaction during digestion | enzymes
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| enzyme that breaks down proteins | pepsin and papain
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| enzyme that breaks down fats | lipase
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| waves of contraction that move food through the digestive system | peristalsis
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| the first part of the small intestines that digest carbohydrates, fats, nucleic acids, and proteins | duodenum
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| enzyme produced in the pancreas that breaks down carbohydrates and neutralize stomach acids | amylase
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| stores bile until it is needed | gall bladder
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| produces bile the break down fats | liver
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| substances that breaks down fats; made in the liver | bile
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| produces amylase that breaks down carbohydrates | pancreas
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| collected in the duodenum to be used by the body | carbohydrates, nucleic acids, fats, and proteins
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| oxygen-poor blood from the body enters heart | right atrium
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| oxygen-poor blood leave the right ventricle to go to the lungs | pulmonary artery
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| oxygen-rich blood enters the heart | pulmonary vein
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| oxygen-rich blood enters the heart through the pulmonary vein | left atrium
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| oxygen-rich blood leaves the left atrium to go | left ventricle
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| enzyme that breaks down fat | bile
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| stores excess bile and recycles it | gall bladder
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| secretes enzymes to aid in digestion | pancreas
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| breaks down proteins into amino acids | pepsin and papain
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| makes bile to aid in digestion | liver
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| absorption of nutrients inside the small intestine s wall through the bloodstream using these finger-like structures | villi
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| absorbs remaining nutrients and water | large intestine
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| enzyme that breaks down carbohydreates | amylase
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| amylase is made in this organ | pancreas
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| chemical enzymes that break down bonds in food. Begins chemical digestion in the mouth | saliva
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| substance found in stomach to chemically digest food | hydrochloric acid
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| semi-digested food that leaves the stomach and enters the first part of the small intestines (duodenum) | Chyme
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Created by:
Christie Williams
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