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Anatomy circulatory

exam 1

QuestionAnswer
how many chambers does the heart have? 4
4 chambers of the heart 2 atria, 2 ventricles
atria receives blood
what is bigger, atria or ventricles? ventricles
right atria receives deoxygenated blood from systemic and coronary
blood received from right atria low O2, high CO2, nutrient rich
left ventricle pumps blood to entire body (oxygenated)
blood received from left atria high O2, low CO2, nutrient rich
ventricles pumping chambers
right ventricle pulmonary circulation (blood to lungs)
left ventricle systemic and coronary circulation
which is more powerful, left or right ventricle? left
flow of blood starting with right atrium right atrium, right ventricle, lungs, left atrium, left ventricle, systemic circulation
systemic blood returns where? right atrium
pulmonary blood returns where? left atrium
where does gas exchange occur? (deoxygenated to oxygenated blood) lungs
biggest to smallest arterial side aorta, arteries, arterioles
biggest to smallest venous side vena cava, veins, venules
where does the exchange between arteries and veins occur? post-capillary veins
arteries carry O2 RICH blood AWAY from the heart
veins carry O2 POOR blood TOWARDS the heart
exception to artery/vein rule pulmonary vein and artery
pulmonary vein carries O2 RICH blood TOWARD heart
pulmonary artery carries O2 POOR blood AWAY from heart
why are veins found near or wrapped around arteries? because arteries are strong and have a pumping motion, veins don't have muscular ability to move blood flow, line up with arteries to benefit from pumping
do veins or arteries have valves? veins
purpose of valves in veins to prevent back flow of blood
valves are most numerous in.. extremities
there are few valves in.. abdomen, thorax, and head
failure in valves lead to.. leaky valves
portal systems deliver substances to a specific destination in a relatively undiluted high concentration
hepatic portal system GI tract --> hepatic portal vein --> liver
hypophyseal portal system hypothalamus --> hypophyseal portal vein --> anterior lobe of pituitary
is the lymphatic system deep or superficial? superficial
lymphatic system is well developed in... dermis of skin and wall of GI structures
where does the lymphatic system ultimately flow? into the venous system
"heart" of the lymphatic system thoracic duct
center of lymphatic system cisterna chyla
location of cisterna chyla at L2
how much of body does cisterna chyla drain? 3/4 of the body- all LE, left side of body
how much of body does right lymphatic duct drain 1/4 of the body
lymphedema build up of lymph
first thing that comes off of aorta coronary arteries
how does the heart pump blood to itself? when left ventricle contracts, blows open 'doors', pushes blood into coronary arteries, sinuses of aortic semilunar valve fill up with blood
most direct path to your heart is... on your left side
3 main branches of aortic arch brachiocephalic artery, left common carotid, left subclavian
brachiocephalic artery splits into... right subclavian and right common carotid
where does brachiocephalic artery bring blood to? arm and head
is brachiocephalic artery short or long? short
unpaired branches of thoracic aorta bronchial and esophageal
paired branches of thoracic aorta posterior intercostal 3-12
thoracic aorta turns into abdominal aorta after ... passing through the diaphragm
path from abdominal aorta L & R common iliac, ext & internal iliac, femoral
descending aorta bifurcates into... left and right common iliac
Created by: thomask9
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