Basic Cardiovascular System
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| show | absorption and metabolizing of oxygen and nutrients, secretion of their metabolic waste
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| how oxygen and nutrients are supplied to cells | show 🗑
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| necessity for proper oxygen and nutrient supply, as well as waste transit | show 🗑
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| the 3 components of the cardiovascular system | show 🗑
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| show | connective
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| show | blood and lymph
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| the heart's role in the cardiovascular system | show 🗑
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| show | 8%
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| show | liquid plasma and a solid component of formed elements
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| plasma is composed of ... | show 🗑
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| proteins found in plasma | show 🗑
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| 'other solutes' found in plasma | show 🗑
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| the 'formed elements' of whole blood are composed of .... | show 🗑
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| show | transporting oxygen and carbon dioxide throughout the body, gives whole blood it's red colour
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| show | immunity, protection against infections
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| show | initiation and stimulation of coagulation (to stop hemorrhaging)
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| functions of blood | show 🗑
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| show | via a closed circuit network of blood vessels
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| show | arteries, veins, capillaries
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| carry blood away from the heart, towards tissues | show 🗑
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| carry blood towards the heart, from the cells/tissues | show 🗑
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| show | capillaries
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| show | epithelial (tunica interna), endothelium
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| the 3 layers (tunics) of veins and arteries | show 🗑
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| show | tunica externa
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| show | tunica media
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| show | tunica interna (endothelium)
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| smooth muscle cell contraction (narrowing of the lumen), increases blood pressure and reduces blood volume | show 🗑
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| smooth muscle cell relaxation,(increase of the diameter of the lumen), decreases blood pressure and increases blood volume | show 🗑
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| three types of arteries | show 🗑
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| found leaving the heart, and rapidly dividing, have a high volume of elastic fibers to accommodate high volume of blood, the aorta is the largest | show 🗑
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| originate from the branching of large arteries, abundance of smooth muscle cells (for vasodilatation and vasoconstriction) | show 🗑
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| very small arteries delivering blood to capillaries | show 🗑
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| two types of veins | show 🗑
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| show | venules
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| formed by the fusion of venules, return blood to the heart | show 🗑
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| differences between veins and arteries | show 🗑
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| show | venous return
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| 3 mechanisms for venous return | show 🗑
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| show | prevents 'backflow' of blood
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| show | muscular pump
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| modification of abdominal and thoracic internal pressure during inhalation/exhalation, pulling blood upwards (vacuum) | show 🗑
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| show | in the mediastinum, on the diaphram, slightly to the left, between the lungs
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| show | pericardium
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| show | two layers of connective tissue separated by a thin cavity filled with pericardial fluid, and a thin single layer wrapping it all
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| show | epicardium, myocardium, endocardium
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| show | epicardium
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| cardiac muscle tissue, middle layer of tissues surrounding walls of the heart | show 🗑
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| thin layer of epithelial tissue covering the inside of the heart | show 🗑
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| the upper chambers of the heart | show 🗑
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| the lower chambers of the heart | show 🗑
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| blood enters the heart through ________, and leaves through the ___________ via _________ | show 🗑
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| blood leaves tissues via ______, which bring it into the ________ | show 🗑
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| show | capillaries
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| show | oxygenated
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| show | de-oxygenated
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| oxygenated blood leaves the lungs via _____ and enters the ___ ______, where it is emptied into the ___ _______ , and leaves the heart via the ________ | show 🗑
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| ________ de-oxyginate blood, which is then brought back to the heart through the ____ _____ via _______, where it is emptied into the ___ _______, and leaves towards the lungs via ________ | show 🗑
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| the two closed circuits of blood circulation | show 🗑
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| define systemic circulation | show 🗑
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| show | systemic circulation
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| show | systemic circulation
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| define pulmonary circulation | show 🗑
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| circuit responsible for excreting CO2 and filling up with oxygen before returning to the heart | show 🗑
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| show | pulmonary circulation
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| the hearts blood supply and vessel network | show 🗑
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| group of specialized cells stimulating atrial and ventricular contractions | show 🗑
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| the contraction phase in cardiac chambers | show 🗑
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| the relaxation phase in cardiac chambers | show 🗑
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| show | cardiovascular centre
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| factors influencing (accelerating) heart rate | show 🗑
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| the force exerted by blood on the blood vessel walls | show 🗑
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