blood vessels of the body from a _______ _______ ________ that begins w/ the heart and ends at the heart closed delivery system É/–ü¼’â@Name the 3 major types of blood vessels arteries, veins, and capillaries É/–ü¼’â@Arteries adn veins are composed of 3 distinct layers called? tunics É/–ü¼’â@this is which type of tunica = circularly arranged smooth muscle cells and elastic fibers tunica media É/–ü¼’â@which tunica has myogenic activity? tunica media É/–ü¼’â@myogenic activity is aka ? vasoconstriction and vasodilation É/–ü¼’â@which tunica contains epithelium (simple squamal) ? tunica intima É/–ü¼’â@which type of tunica = loosely woven collagen fibers? tunica adventia (externa) É/–ü¼’â@tiny blood vessels are aka vasa vasorum É/–ü¼’â@ __________- are vessels that transport blood away from the heart ? arteries É/–ü¼’â@Name the 3 groups of arteries? elastic (conducting) arteries, muscular (distributing) arteries, arterioles É/–ü¼’â@ this is which type of artery = smalles of arterial vessels, have single layer of smooth muscle cells spiralling around endothelial lining arterioles É/–ü¼’â@which type of artery is this = composed proportionately more smooth muscle and less elastic tissue muscular arteries (distributing) É/–ü¼’â@which arteries eliver blood to specific body organs? muscular arteries (distributing) É/–ü¼’â@the aorta is an example of which type of arterie? elastic É/–ü¼’â@this is which type of arterie = large diameter lumens allow arteries to serve as low resistance conduits for conducting blood from heart to medium sized arteries? elastic arteries É/–ü¼’â@which type of artery = blood flows continously rather then directed by pulsating rhythm of the heartbeat elastic artery É/–ü¼’â@The alternating expansion & recoil of elastic arteries during each cardiac cycle creates a ______ _______ = pulse pressure wave É/–ü¼’â@this is also referred to as compression/pressure points? pulse points É/–ü¼’â@Their are 9 different pulse points - name them 1) temporal 2) femoral 3) facial 4) popliteal 5) common carotid 6) posterior tibial 7) brachial 8) dorsalis pedis 9) radial É/–ü¼’â@the alternating expansion & recoil of elastic arteries dring each cardiac cycle creates a pressure wave this is aka arterial pulse É/–ü¼’â@ _____ are formed when capillaries unit venules É/–ü¼’â@ _____ have thin tunics and larger lumens than arteries veins É/–ü¼’â@ 65% of the blood volume is always in the ? veins É/–ü¼’â@ _____ are referred to as capacitance vessels or blood reservoirs veins É/–ü¼’â@blood pressure is _______ in veins low É/–ü¼’â@this is an adaptation to help return blood to the heart at the same rate it was pumped into circulation low blood pressure É/–ü¼’â@ _______ system = blood is carried from the capillary beds toward the heart by veins venous É/–ü¼’â@naem 2 characteristics of veins 1) large diameter lumen 2) presence of valves (in limbs) allowing for unidirectional flow É/–ü¼’â@why are valves not found in ventral cavity as they are found in limbs? cuz upward flow is opposed by gravity É/–ü¼’â@ ________ are the smallest blood vessels w/ thin walls consisting on only a tunica intima capillaries É/–ü¼’â@Name 2 types of capillaries continous capillaries + fenestrated capillaries É/–ü¼’â@where are continous capillaries found? skin and muscle É/–ü¼’â@what is the space between incomplete tight junctions called intercellular clefts É/–ü¼’â@these endothelial cell have many oval pores that are covered by a membrane + has greater permeability to fluids and small solutes fenestrated capillaries É/–ü¼’â@What two organs have fenestrated capillaries in them? kidney's and liver É/–ü¼’â@these capillaries connect arterioles and venuoles in liver and have large irregular shaped lumens sinusoids É/–ü¼’â@ ________ interweaving networks of capillaries consisting of two types of vessels capillary beds É/–ü¼’â@ É/–ü¼’â@