Determine If an Applicant/Certificated Airman Meets the English Language Eligibility Requirement for an FAA Certificate: 12/19/2017: M G-V R9: Gulfstream Aerospace, GV, GV-SP, GV-SP (G550), GV-SP (G500) GIV-X, GIV-X (G450), GIV-X (G350) (FOR 14 CFR PART 91 and 135 OPERATIONS ONLY), Rev. 9 Date -- 12/18/2017: 12/18/2017: SAS ExPort-AutoUserGuide
myocardium. [mÄ«â²Åkaerâ²ÅkÃ¤rÂ·dÄ]. Ém: Etymology, gk, mys, muscle, kardia. heart a thick contractile middle layer of uniquely constructed and arranged muscle cells that forms the bulk of the heart. Wall the myocardium contains a minimum of other, tissue except blood, vessels and is covered interiorly by the. endocardium
1 Thus, the epicardium is a thin layer of serous membrane that helps to lubricate and protect the outside of the heart. Below the epicardium is the second, thicker layer of the heart wall: the myocardium.  Myocardium. The myocardium is the muscular middle layer of the heart wall that contains the cardiac muscle tissue. Myocardium makes up the majority of the thickness and mass of the heart wall and is the part of the heart responsible for pumping blood. Below the myocardium is the thin endocardium layer.