the circulatory (cardiovascular) system

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slide 1 the circulatory (cardiovascular) system the cardiovascular system consists of a network of vessels that circulates blood throughout the body, motored by the action of the heart. we’ll be talking about specifics of the heart in a separate lesson, so will concentrate here on the circulatory system. the inferior vena cava is the largest vein of the body. it carries de-oxygenated blood back from the lower part of the body to the right atrium of the heart. this blood is carrying carbon dioxide. the superior vena cava is above the heart and carries de-oxygenated blood from the head and arms to the right atrium of the heart. from the right atrium, the blood flows through the tricuspid valve to the right ventricle and then onto the lungs through the pulmonary valve and pulmonary artery. in the lungs, the blood exchanges the carbon dioxide it is carrying for oxygen. the …

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into the kidney. the kidney is a filter, and takes some water and waste products out of the blood. the kidneys excrete the waste products and water out of the body as urine. the descending aortic artery continues downward into the abdomen. it then splits into two major branches. this split is called the aortic bifurcation; the two branches are called iliac arteries. the left iliac artery supplies blood to the left pelvis and leg; the right iliac artery supplies blood to the right pelvis and leg. the iliac artery continues down into the leg as the femoral artery and its branches. arteries are elastic tubes that carry blood in pulsating waves. the blood exerts pressure against the walls of the arteries as it passes through. the peak pressure occurs during the heart’s contraction, and is called systolic pressure. the minimum pressure occurs between contractions when the heart expands and …

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ge adult, systolic pressure usually ranges between 100 to 140 mm hg. diastolic pressure usually ranges between 60 to 90 mm hg. a typical blood pressure reading would be expressed as 120/80… 120 over 80. a reading of 140/90 would be considered ‘high’ blood pressure, and may pose health risks. arterioles act like adjustable nozzles in the circulatory system, so they have the greatest influence over blood pressure. the arteries branch off into even smaller vessels called arterioles, and then to smaller vessels yet called capillaries. the capillaries are the smallest of the blood vessels, and the walls are so thin that molecules can pass through them. they branch out from the arterioles, passing next to the organs, intestines, and through all the cellular tissue. in the cellular tissue, the capillaries provide the means of exchange, through the process of absorption. the capillaries branching away from the arteries in the …

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va, and back into the right atrium of the heart. circulation is complete, and starts over again. what is the cardiovascular system? left common right common, 2 carotid artery atotd ateny fight intemal les intemal jugularvein iu atch of right brachial cof @ " ‘superior vena fight renal ava = lest braehial ey inferior vena ~ abdominal fight common: aorta artery fize aren) fight external lett carmen iiacvein let femoral fight femoral ne ate, adam.com tracing the flow of blood...pulmonary circulation pulmonary capillary basement membrane alveolus interstitial uid _endotherium from arteriole to venule (2 is leaded from the alveolar air into the blood, while co2 is unloaded from the blood inte alveolar air. superior luna leftvantrice aorta capiavies tracing the flow of blood...systemic circulation head and upper extremities ' “ahdamen and lawer extremities left common right common carotid artery carotid artery right subclavian left artery subclavian artery brachiocéphalic artery oo …

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t permitted| capillaries — atericle venule tery capilanies tissueccells, «= vein tracing the flow of blood... the arterioles tracing the flow of blood... the capillaries capillary microcirculation blood flow yi interstitial fluid hydrostatic pressure ostnatic pressure capillary —=— venous end o oxygen red blood from lungs ce oxygen released to tissue cells hemoglobin molecules oxygen bonded with hemoglobin molecules tracing the flow of blood... the venules capillaries = arteriole venule artery capillaries tissue cells ven precapillary : tigers muscle fibers (cells) tiraciling thie flow ot llood... the velns normal one-way vein valves blood flowing healthy valve to heart prevents reverse blood flow tracing the flow of blood... the veins tracing the flow of blood... the veins circulatory sys tem the end

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slide 1 the circulatory (cardiovascular) system the cardiovascular system consists of a network of vessels that circulates blood throughout the body, motored by the action of the heart. we’ll be talking about specifics of the heart in a separate lesson, so will concentrate here on the circulatory system. the inferior vena cava is the largest vein of the body. it carries de-oxygenated blood back from the lower part of the body to the right atrium of the heart. this blood is carrying carbon dioxide. the superior vena cava is above the heart and carries de-oxygenated blood from the head and arms to the right atrium of the heart. from the right atrium, the blood flows through the tricuspid valve to …

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