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28 Cards in this Set

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