mr. alexander, miss jacobs, and miss socash. the circulatory system blood vessels arteries veins
DESCRIPTION
Arteries are the blood vessels that carry oxygenated blood AWAY from the heart The veins bring the blood without oxygen BACK to the heartTRANSCRIPT
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Mr. Alexander, Miss Jacobs, and Miss Socash
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The Circulatory system Blood vessels
Arteries Veins
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Four chambers Upper chambers= atria Lower chambers= ventricles One way valves control the flow of
blood through the heart
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This will show the flow of blood through the heart
http://www.texasheartinstitute.org/HIC/ProjH/circulatorysystem.cfm
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Components: Blood cells
red white
Blood plasma Platelets
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Percentage distribution of blood types in the general population
A B AB O
37% 12% 3% 47%
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Used to categorize blood Rhesus positive (+) Rhesus negative (-)
If the Rh antigen is present the blood is positive
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Donors must provide a thorough history Recent travel Infections Medicines Health problems
Blood donations are tested for: HIV Hepatitis B and C Syphilis West Nile virus
If any of these are found, the blood is destroyed.
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What is a pulse? Throbbing of the arteries caused by
contractions of the heart Let’s check your pulse!
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When a doctor takes your pulse he/she is mainly checking for two things: How fast your pulse is If your pulse is regular(same time between
beats)
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What is blood pressure? Pressure of the blood against the walls of
the arteries Results from two forces:
Heart pumping blood into the arteries Arteries resisting blood flow
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The systolic number represents the pressure while the heart contracts.
The diastolic number represents the pressure when the heart relaxes.
Systolic/Diastolic 118/70
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Hypertension (140/90) High blood pressure can cause:
Heart attack Stroke
Risk factors: Diet High stress levels Exercise Tobacco use
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http://www.studystack.com/studytable-20168
http://www.texasheartinstitute.org/hic/anatomy/anatomy2.cfm
http://en.wikipedia.org/wiki/Blood