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28 Cards in this Set
- Front
- Back
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cardiac cycle
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sequence of events in on heartbeat
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cardiac cycle [how it works]
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simultaneous contraction of the Two Atria, followed a fraction of a second latter by the Simultaneous contraction of TWO ventricles
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phase 1 SYSTOLE
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a term for contraction
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phase 2 DIASTOLE
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term for relaxation
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arteries
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carry blood from the heart to the capillaries and the rest of the body
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capillaries
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small & narrow vessels that branch from ateries
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vein
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bring from capillaries back to the heart
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connective tissue
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blood is also...
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plasma
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strawcolored liquid portion of blood and is 90 % water and 10 % dissolved fats, salts, sugars and proteins
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45%
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blood has___ of red blood cells white blood cells and platelets
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antigen
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blood types are determined by ___ on the surface of red blood cells
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protein or carbohydrates
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antigen is a ________ that acts as a signal enablin body to recognize foerign substances
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A,B, Rh
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3 human antigens
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closed circulatory system
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high animals usually have a _____ meaning it is repeated cycled throughout the body
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heart
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hallow muscualr organ that contracts at regular intervals forcing blood though the circulatory system
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sternum
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heart located right under ...
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apex
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pointed end of heart ;reason y its tilted
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not
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muscle in the heart ___ under controll by nervous system
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1 every second
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heart beats...
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right side
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_______side of the hear pumps blood from the body into the lungs
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left side
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___ siide of the heart pumps blood to the rest of the body
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deoxygenated blood
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oxygen poor blood
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oxygenated blood
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oxygen rich blood
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4 chamber
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heart has ___ chambers
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atria
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upper chambers
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atria
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recieve blood coming into heart
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ventricles
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lower chambers
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left ventricle
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thickest chamber, most hardworkin;pumps blood to all parts of the body
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