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`HH ClevelandClinic
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`ORIGINAL ARTICLE
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`https://my.c eve andcinic.org/hea th/artic es/heart-b ood-vesse s-coronary-arteries
`
`DATE PUBLISHED
`APPOINTMENTS
`
`September13, 2017
`800.659.7822
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`HEALTH LIBRARY
`
`ARTICLES
`
`HEART & BLOOD VESSELS: YOUR CORONARYARTERIES
`
`Heart & Blood Vessels: Your Coronary Arteries
`
`YOUR CORONARYARTERIES
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`The heart receives its own suppy of b ood from the coronary arteries. Two major coronary arteries branchoff from the aorta
`
`near the point where the aorta and the eft ventric e meet. These arteries and their branches supp ya_ parts of the heart
`musc e with b ood.
`
`©2017ClevelandClinic.AllRighsReserved.
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`9500EuclidAvenue,Cleveland,Ohio44195
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`800.223.2273
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`https://my.clevelandclinic.org/health/articles/heart-blood-vessels-coronary-arteries?view=pnint
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`Page 1 of 3
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`Your Coronary Arteries | Cleveland Clinic
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`Loft coronary
`artery -
`divides into two
`branches: the
`circumflex artery
`and the left anterior
`descending artery
`
`
`Right coronary
`Circumflex
`artery (RCA)
`artory
`
`supplies bloodto
`supplies blood
`
`the right atrium5
`to the left
`right ventricle,
`atrium and the
`
`bottom portionof
`side erdd beck
`the left ventricle and
`of the left
`
`backofthe septum
`Winkel
`
`
`
`,
`
`Coronary veins
`fin orn poor
`Cdscoygoneted’)blood
`thathas already been
`“used” by muscles of
`the heart and return i to
`the rightatrium
`
`s
`
`Loft
`anterior
`“p descending
`artery (LAD)
`totheoctoad
`bottom ofthe
`leR ventricle
`and the front of
`the septum
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`Left Main Coronary Artery (also called the left main trunk)
`
`The left main coronary artery branchesinto:
`
`e Circumflex artery
`
`e Left Anterior Descending artery (LAD)
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`Theleft coronary arteries supply:
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`e Circumflex artery - supp ies b ood to the eft atrium, side and back of the eft ventric e
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`e Left Anterior Descending artery (LAD) - suppies the front and bottom of the eft ventric e and the front of the septum
`
`Right Coronary Artery (RCA)
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`The right coronary artery branchesinto:
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`https://my.clevelandclinic.org/health/articles/heart-blood-vessels-coronary-arteries?view=pnint
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`CATHWORKSEXHIBIT 1016
`Page 2 of 3
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`Your Coronary Arteries | Cleveland Clinic
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` © 2017 Cleveland Clinic. All Righs Reserved.
`
` 800.223.2273
`
`9500 Euclid Avenue, Cleveland, Ohio 44195
`
`Right margina artery
`
`Posterior descending artery
`
`The right coronary artery supplies:
`
`right atrium
`
`right ventric e
`
`bottom portion of both ventric es and back of the septum
`
`The main portion of the right coronary artery provides b ood to the right side of the heart, which pumps b ood to the ungs.
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`The rest of the right coronary artery and its main branch, the posterior descending artery, together with the branches of the
`
`circum(cid:216)ex artery, run across the surface of the heart s underside, supp ying the bottom portion of the eft ventric e and back
`
`of the septum.
`
`What is collateral circulation?
`
`Co atera circu ation is a network of tiny b ood vesse s, and, under norma conditions, not open. When the coronary arteries
`
`narrow to the point that b ood (cid:216)ow to the heart musc e is imited (coronary artery disease), co atera vesse s may en arge and
`
`become active. This a ows b ood to (cid:216)ow around the b ocked artery to another artery nearby or to the same artery past the
`
`b ockage, protecting the heart tissue from injury.
`
`Collateral vessels surround blocked blood vessel
`
`
`
`Learn more about coronary artery disease (https://my.c eve andc inic.org/hea th/artic es/coronary-artery-disease)
`
`https://my.clevelandclinic.org/health/articles/heart-blood-vessels-coronary-arteries?view=print
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`CATHWORKS EXHIBIT 1016
`Page 3 of 3
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