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Circulatory System QuestionsAMSTI Book Back in Circulation-pg 126-129 1. Why is the circulatory system called a closed circulatory system? There is no beginning and no end to the circulatory system 2. What does the circulatory system consists of? Heart, arteries, veins, capillaries, blood 3. How much blood does your body need? 5 lites of blood to stay alive 4. Where in your body is the heart located, and what is the name of the layer that covers the heart? The heart is located in the chest cavity, cushioned by the lungs and covered by a sac called pericardium 5. How can the circulatory system be compared with a transportation system? The heart is the hub and transport many important materials just like the transportation system 6. What are arteries? Arteries are large one way blood vessels that carry blood away from the heart. 7. What do the arteries branch out into? Arteries branch out into smaller vessels called arterioles and eventually into smaller thinnest blood vessels called the capillaries 8. What are the passengers riding in the arteries called? Red and white blood cells 9. What happens when red blood cells reach the lungs? When a drop of blood reaches lungs it unloads carbondioxide and picks up oxygen 10.What would be the length of the human blood vessels placed end to end? 96,000 Kilometers long 11.How long does it take for the blood cell to circulate through the body? 60 seconds 12.Once the oxygen molecule latches on to the red blood cells in the capillaries where does it go? Through which blood vessel? The oxygen molecule latched to the red blood cells goes to the left side of the heart, through the pulmonary vein 13.How many chambers do Peppi and Bollo have to travel through? Two chambers with oxygen rich blood, upper left atrium and lower left ventricle 14.Which sound does the squeeze in the bottom of the heart produce? Top of the heart? When the valve between the atrium and ventricle closes, it produces the lub sound. When the valve between the ventricle and arteries closes, it produces a dub sound. 15. What causes a heartbeat? Heartbeats are caused by electrical impulses that come from the small area in the upper right corner of the heart. These impulses make the heart contract 16.Where do Peppi and Bollo go after they leave the heart? Peppi and Bollo go to a large artery called the aorta after leaving the left ventricle 17.To what part of the body does the aorta carry blood ? Aorta branch into smaller arteries , then capillaries and carry blood to all parts o the body 18.What happens to oxygen and carbon dioxide in the brain cells? Oxygen is delivered to the brain cells and carbon dioxide is picked up in exchange 19.Which blood vessel carry Peppi and Bolo back to the heart? Through which side do they enter? Where do they go from the upper chamber? A vein carry Peppi and Bollo right side o f the heart. 20.Which blood vessel carry them to the lung? Pulmonary artery carry Peppi and Bollo to the lungs 21.What are the upper chambers of the heart called? What are the lower chambers of the heart called? Upper chambers of the geart are called atrium and the lower chambers are called ventricles 22.Where is the blood in the right atrium coming from? From the body. Where is the blood in the left atrium coming from? From the lungs 23.Which side has the bright red (oxygen rich) blood? left side of the heart 24.Where does the blood go when the lower chamber ventricles contract. . When the ventricles contract the blood from the ventricles move into the arteries Specify both the bright red and the tired dark red blood? The dark red blood red goes to the lungs to get oxygen bright red goes to the body . 25.What are two systems of circulation-? Pulmonary and systemic 26. Describe systemic circulation. Systemic circulation is the part of the cardiovascular system which carries oxygenated blood away from the heart to the body, and returns deoxygenated blood back to the heart 27.Describe pulmonary circulation Pulmonary circulation is the portion of the cardiovascular system which carries oxygen-depleted blood away from the heart, to the lungs, and returns oxygenated blood back to the heart