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19 Cards in this Set
- Front
- Back
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Layers of heart
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*Epicardium-outer, visceral
*Myocardium-middle, muscle, this layer contracts *Endocardium-inner layer, lines chambers |
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Semiluner valves
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Pulmonic valve
Aortic Valve |
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R side of heart....
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Pulmonary Circulation,
Recieves O2 poor blood, pumps to lungs thru the pulmonary trunk |
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L side of heart...
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O2 Rich blood returned to this side, and pumped throughout the rest of the body
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Coronary Sinus
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this enlarged Vessel is on the backside of the heart, and several cardiac veins empty into it. It empties into Right atrium
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Cardiac conduction system/Nodal system
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SA Node--> AV Node-->Bundle of His--> AV Bundle Branches-->Purkinje fibers
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Cardiac output
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Amount of blood pumped out by each side of the heart in one min.
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Stroke Volume
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Volume of blood pumped out of vent with each heart beat
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3 Coats of Blood Vessel
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1.Tunica Intima- inner, thin endothelium
2.Tunica Media- sm. musc and elastic tissue 3.Tunic externa- outermost, fibrous connect. tissue |
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Blood Pressure Gradient
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Pressure the blood exerts against the blood vessel walls
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5 factors that influence Blood pressure
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1. Neural Factors
2. Renal Factors 3. Temp 4. Chemicals 5. Diet |
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Baroreceptors
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Volumetric detectors that exist in the atria of the heart. Involved in thirst, when atria stretched, these are shut down.
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Suprarenal arteries
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serve the adrenal gland
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Hepatic portal vein
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Drain the digestive organs, spleen, pancreas..
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Inferior Mesenteric Vein
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Drains the terminal part of the Lg intestine into the splenic vein
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Superior Mesenteric Vein
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Drains small intestine and 1st part of colon, joins with splenic vein to become Hepatic portal vein
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Gastric vein
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Drains R side of stomach directly into hepatic portal vein
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Atherosclerosis
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"damming" up process occurs from inside-out, walls of vessels thicken and then protrude into the vessel lumen
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Arteriosclerosis
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hardening of vessels, scar tissue replaces smooth muscle of bl. vessel walls
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