Apex of the heart 2472198 212255295 2008-05-14T01:36:25Z ClueBot 4928500 Reverting possible vandalism by [[Special:Contributions/75.65.163.183|75.65.163.183]] to version by 204.10.252.13. False positive? [[User:ClueBot/FalsePositives|Report it]]. Thanks, [[User:ClueBot]]. (374065) (Bot) {{Infobox Anatomy | Name = {{PAGENAME}} | Latin = apex cordis | GraySubject = 138 | GrayPage = 527 | Image = heart2020.jpg | Image2 = Gray492.png | Caption2 = Sternocostal surface of heart. (Apex is not labeled, but is visible at bottom right.) | Image3 = Gray1218.png | Caption3 = Diagram showing relations of opened [[heart]] to front of [[thoracic wall]].<BR><BR>Ant. Anterior segment of [[tricuspid valve]].<BR>A O. [[Aorta]].<BR>A.P. Anterior [[papillary muscle]].<BR>In. [[Brachiocephalic artery|Brachiocephalic artery (Innominate)]].<BR>L.C.C. Left [[common carotid artery]].<BR>L.S. Left [[subclavian artery]].<BR>L.V. [[Left ventricle]].<BR>P.A. [[Pulmonary artery]].<BR>R.A. [[Right atrium]].<BR>R.V. [[Right ventricle]].<BR>V.S. [[Interventricular septum|Ventricular septum]]. | System = | MeshName = | MeshNumber = | DorlandsPre = a_52 | DorlandsSuf = 12145026 | }} The '''apex of the heart''' is the lowest superficial part of the [[heart]]. It is directed downward, forward, and to the left, and is overlapped by the [[left lung]] and [[pleura]]. ==External anatomy== It lies behind the fifth left [[intercostal space]], 8 to 9 cm. from the [[mid-sternal line]], slightly medial to the [[midclavicular line]]. Alternately, it can be found about 4 cm. below and 2 mm. to the medial side of the left [[mammary papilla]]. ==External links== * {{eMedicineDictionary|Apex+of+heart}} * {{SUNYAnatomyLabs|20|05|01|04}} - "Heart: Sternocostal Surface of the Heart" * {{RocheLexicon|02101.002-2}} {{circulatory-stub}} {{Gray's}} {{Heart}} [[Category:Cardiovascular system]] [[ja:心尖]]