University:
Franklin University
Course:
BIO-251 | General Anatomy/Physiology I
Academic year:

2019
Views:

260

Pages:

26
Author:

NovaNurturer

Cardiovascular Embryology Primary heart field (PHF) and Secondary heart field (SHF) Fusion of endocardial heart tube Dorsal mesocardium Remnant of Dorsal mesocardium, is transverse pericardial sinus Heart tube layers • Cardiac jelly: secreted by myocardium • Epicardium: originates from proepicardium and msothelial cells in outflow region of heart Cardiac Loop formation • Sinuatrial junction • Atrioventricular junction • Bulboventricular sulcus • Atrioventricular canal • Primary interventricular foramen Formation of posterior wall of right and left atria Cardiac Septation Septation in atrium Septation of atrioventricular canal Formation of Mitral and Tricuspid valves • • • • Formation of truncus arteriosus and conus cordis Truncus swellings: 1 pair Conus swellings: 1 pair Conotruncal septum Neural crest cells (from 3th, 4th and 6th pharyngeal arches) participate in this region Septation in ventricle Vascular development Arteries Aortic arches and Dorsal aorta Vitelline artery Umbilical arteries Coronary arteries Coronary arteries, have 3 originates: • Proepicardial cells: originates from caudal part of dorsal mesocardium • Epicardial cells • Neural crest: smooth muscles Veins Vitelline veins Umbilical veins Cardinal veins Venous derivatives Joining the anterior cardinal veins Left brachiocephalic end of left posterior cardinal vein Left superior intercostal vein Left Common cardinal vein + proximal part of right anterior cardinal vein Superior vena cava (SVC) Distal part of anterior cardinal vein Internal jugular vein A venous plexus External jugular vein Joining the left and right subcardinal vein Left renal vein Remnant of left subcardinal vein Left gonadal vein Right subcardinal vein Right renal vein and renal part of IVC Joining the left and right sacrocardinal vein Left Common iliac vein Remnant of right sacrocardinal vein Right common iliac vein and sacrocardinal part of IVC Right supracardinal vein Azygos vein Left supracardinal vein Hemiazygos vein