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Cards In This Set
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Vasovagal syncope
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Fainting before, during or after venipuncture. Caused by unpleasant physical or emotional stimuli such as pain, right, or the sight of blood, that creates a sudden loss of blood pressure. Also patients with low diastolic or high systolic blood pressure, or patients exhibiting nervousness or apprehension may be prone to fainting.
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Amount of time it takes for the blood in the system to make a complete circulation in the body
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One minute
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Amount of blood average person weighing 155 pounds has in their body
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155 pounds
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What blood is what up of - substance and percentage
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55% plasma (a clear pale yellow fluid)45% RBC's, WBC's, nutrients, lipids, glucose, sodium, magnesium, calcium, potassium, oxygen, carbon dioxide, nitrogen, antibodies, as well as vitamins and hormones.
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Function of circulatory system
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To deliver oxygen, nutrients, hormones, and enzymes to the cells. Exchange is done at the capillary level).
Also to transport cellular waste such as carbon dioxide tfrom lung and urea from kidneys to the organs where they can be expelled from body. Circulation system is a transport system where the blood is the vehicle, and the blood vessels, tubes and heart work as the pump. |
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Function of heart
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Acts as two pumps in series (right and left sides), connected by two circulations, with each pump equipped with two valves, the function of which is to maintain a one-way flow of blood.
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Pulmonary circulation
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This circulation carries deoxygenated blood from the right ventricle to the lungs and returns oxygenated blood from the lungs to the left atrium.
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Where oxygenation takes place
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Alveoli
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Systemic circulation
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Carries oxygenated blood from the left ventricle throughout the body.
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Upper chamber of the heart
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Atrium
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Lower chamber of the heart
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Ventricle
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Tricuspid valve
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Atrioventricular valve, situated between the right atrium and right ventricle.
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Pulmonic valve
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Semi lunar valve situated between right ventricle and pulmonary artery.
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Mitral valve
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A.k.a. bicuspid valve. situated between left atrium and left ventricle.
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Aortic value
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Semi lunar valve situation between the left ventricle and aorta
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