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30 Cards in this Set
- Front
- Back
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Another name for the cardiovascular system
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circulatory system
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What is the cardiovascular system?
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--Like a highway network for the body;
Consists of the heart, blood vessles and blood |
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What is the function of the cardiovascular system?
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--delivering needed materials
--removing/carries waste products away from cells --fighting disease |
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Explain the deliverying system of the cardiovascular system.
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Most substances that need to get from one part of the body to another are carried by the blood.
Carries oxygen from lungs to other body cells. --Transports glucose |
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How does the cardiovascular system remove waste?
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picks up waste from cells.
Example: Cells break down glucose. They produce carbon dioxide as a waste product. Carbon dioxide passes from cells into blood. Cardiovascular system carries carbon dioxide to lungs and it is exhaled. |
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How does the cardiovascular system fight diseases?
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The system transports cells that attack disease-causing microorganisms.
If you get sick, these diseas fighting blood cells kill the microorganims and help you get well. |
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What materials does the cardiovascular system deliver throughout the body?
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Oxygen and glucose
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How does it grea rid of carbon dioxide?
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Carbon dioxide is passed from cells into the blld, and then carreid to the lungs where it is exhaled.
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Name one needed material and one waste product transported by the cardiovascular system?
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oxygen
glucose waste product: carbon dioxide |
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How does the cardiovascular system help fight disease?
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It trnansports cells that attack disease-causing microorganisms.
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What are the four chambers of the heart?
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right atrium
right ventricle left atrium left ventricle |
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Which chambers contain oxygen-rich blood?
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left atrium
left ventricle |
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How could thick walls benefit the ventricles?
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Thick walls give ventricles the muscular strength to pump blood out of the heart.
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Describe the heart.
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a hollow, muscular organ that pums bood throughout the body
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What size is the heart?
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about the size of a fist
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heart
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made of cardia muscle which conrtract over and over withou getting tired
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atrium
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Each of the two upper chambers is called an atrium that receives blood that comes from the heart
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ventricle
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Each lower chamber is called a ventricle and it pumps blood out of the heart
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valve
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A valve is a flap of tissue that prevents blood from flowing backward.
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What is a pacemaker?
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A group of heart cells located in the right atrium that sends out signals that make the heart muscle contract and that regulates heart rates. It than adjusts.
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capillary
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A tiny blood vessel where substances are exchanged between the blood and body cells.
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vein
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A blood vessel that carries blood back to the heart.
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aorta
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The largest artery in the body; receives blood from the left ventricle.
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how many sides does a heart have?
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two sides.
The right side of the heart is completely separated from the left side by a wall of tissue called the septum. |
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How many chambers are there?
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Each side has two compartments or chambers--an upper chamber and a lower chamber
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What sounds do your heart make?
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The "lub" comes from the closing of the valves between the atria and ventricles.
--dup comes from the closing of the valves between the vbentricles and the blood vessels. |
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How does the heart work?
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Two phases:
1. heart muscle relaxes and the heart fills with blood. 2. the heart muscle contracts and pumps blood forward. A healthbeat sounds like a lub-dup. |
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What is the function of a pacemaker?
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it adjusts the heart rate to meet the body's oxygen needs.
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Where are valves located?
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Valves are also located between the ventrticles and the large blood vessels that carry blood away from the heart.
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Where does the blood that enters the left atrium come from?
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The lungs
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