Notes in 2. Emb. CVS (1)

To Subscribe, use this Key

Status	Last Update	Fields
Published	02/10/2024	Cardiovascular System is the first major system to function in the embryo, starting around the {{c1::4th}} week.Why? Rapidly growing embryo…
Published	02/10/2024	The {{c1::cardiogenic field}} is the appearance of blood vessels 'islands' in the yolk sac, allantois, connecting stalk and chorion.
Published	02/10/2024	Blood vessels in {{c1::lateral plate splanchnic mesoderm}} form two {{c2::heart tubes}}
Published	02/10/2024	Heart tubes {{c1::fuse}} and join blood vessels in other areas to form primordial cardiovascular system
Published	02/10/2024	With cranial folding of embryo, the heart tube comes to lie {{c1::dorsal}} to pericardial cavity
Published	02/10/2024	The {{c1::somatic mesoderm}} forms both the {{c2::parietal}} layer of serous pericardium and {{c2::fibrous}} percardium.
Published	02/10/2024	The {{c1::splanchnic mesoderm}} forms the {{c2::visceral}} layer of serous pericardium.
Published	02/10/2024	The {{c1::intra-embryonic coelom}} forms the {{c2::pericardial}} cavity.
Published	02/10/2024	Heart tube starts to bulge and differentiate into {{c1::arterial (cranial)}} and {{c1::venous (caudal)}} ends.
Published	02/10/2024	1edd82d5ed3f486da4c83c1d1dec804c-ao-1
Published	02/10/2024	1edd82d5ed3f486da4c83c1d1dec804c-ao-2
Published	02/10/2024	1edd82d5ed3f486da4c83c1d1dec804c-ao-3
Published	02/10/2024	1edd82d5ed3f486da4c83c1d1dec804c-ao-4
Published	02/10/2024	1edd82d5ed3f486da4c83c1d1dec804c-ao-5
Published	02/10/2024	1da5bfb4ee68409c9fc582747dbdd7cb-ao-1
Published	02/10/2024	1da5bfb4ee68409c9fc582747dbdd7cb-ao-2
Published	02/10/2024	1da5bfb4ee68409c9fc582747dbdd7cb-ao-3
Published	02/10/2024	1da5bfb4ee68409c9fc582747dbdd7cb-ao-4
Published	02/10/2024	1da5bfb4ee68409c9fc582747dbdd7cb-ao-5
Published	02/10/2024	Primitive heart tube {{c1::invaginates}} the pericardium
Published	02/10/2024	Growing heart tube (bulbus cordis & primitive ventricle) becomes too large for pericardium → folds/loops forming the {{c1::bulboventricular l…
Published	02/10/2024	Bulbus cordis and ventricle enlarge and loop to the {{c1::right}} Ventricle pushed {{c2::left}} and {{c2::inferiorly}} Atrium pushed {{c2::superiorly}…
Published	02/10/2024	{{c1::Dextrocardia}} is abnormal cardiac looping which happens when the heart tube loops to the left side so the ventricles face the right side.• Most…
Published	02/10/2024	After cardiac loop formation, the primitive heart is:So we need to partition:[1] the single {{c1::atrioventricular canal}} into left and right AV cana…
Published	02/10/2024	The process of partition in the heart involves two actively growing masses of tissue: {{c1::endocardial cushions}} and {{c1::heart septae}}.
Published	02/10/2024	The {{c1::endocardial cushion growth}} separates right atrium + ventricle from left atrium + ventricle to form L & R {{c2::Atrioventricular (…
Published	02/10/2024	Partitioning of Primitive Atrium into left & right atria involves:[1] Formation of {{c1::septum primum}}[2] Formation of {{c1::ostium primum}}[3] …
Published	02/10/2024	The {{c1::foramen ovale}} closes at birth when the {{c3::septum primum}} fuses with {{c3::septum secundum}} forming the {{c2::fossa ovalis}}…
Published	02/10/2024	Before birth, the {{c1::foramen ovale}} allows the passage of blood from the right to the left atrium, bypassing the non-functional lungs→ prevents th…
Published	02/10/2024	The {{c1::fossa ovalis}} is a depression in the interatrial septum.
Published	02/10/2024	Non-closure of the foramen ovale results in a {{c1::patent foramen ovale}} after birth.This is a common form of congenital {{c2::Atrial Septal Defect}…
Published	02/10/2024	Partitioning of Primitive Ventricle into left & right ventricles involves:[1] Formation of {{c1::Muscular ventricular septum}}[2] Formation of {{c…
Published	02/10/2024	The opening of the muscular ventricular septum is called {{c1::interventricular foramen}}
Published	02/10/2024	During 5th week, the spiral {{c1::Aorticopulmonary septum}} divides {{c2::bulbis cordis}} and {{c2::truncus arteriosus}} into {{c3::aorta}} and {{c3::…
Published	02/10/2024	The interventricular foramen closes when the bottom of {{c1::aorticopulmonary septum}} fuses with {{c2::muscular ventricular septum}} and {{c2::endoca…
Published	02/10/2024	After completion of {{c1::atrial}} and {{c1::ventricular septation}}, heart looks like:
Published	02/10/2024	{{c1::Ventricular Septal Defect (VSD)}} is the most common type of CHD (congenital heart disease) – 25% of defects• Can appear in any part of sep…
Published	02/10/2024	{{c1::Transposition of Great vessels}} is a common cause of cyanotic disease in newborn infants associated with ASD and VSD.→ Permit exchange of …
Published	02/10/2024	Causes of Transposition of Great vessels:1) Failure of {{c1::aorticopulmonary septum}} to take a {{c1::spiral}} course 2) Defective migration of {{c1:…
Published	02/10/2024	The {{c1::cusps}}, {{c1::chordae tendineae}} and {{c1::papillary muscles}} of the atrioventricular valves develop from the {{c2::ventricular…
Published	02/10/2024	The {{c1::semilunar}} valves in the aorta and pulmonary trunk are formed from {{c2::subendocardial valve tissue}}.
Published	02/10/2024	Early pacemakers are {{c1::cardiomyocytes}} in primitive atrium and sinus venosus
Published	02/10/2024	SA node (pacemaker) develops during {{c1::5th}} week
Published	02/10/2024	SA node is located high in the {{c1::right atrium}} near the entrance of the SVC
Published	02/10/2024	AV node and bundle of His develop from cells of {{c1::AV canal}} and {{c1::sinus venosus}}
Published	02/10/2024	{{c1::Cot death/sudden infant death syndrome (SIDS)}} occurs as a result of the failure of the conducting system of the heart to form properly.
Published	02/10/2024	e209096b5ddf412986e7b8a2f9b4edc7-ao-1
Published	02/10/2024	e209096b5ddf412986e7b8a2f9b4edc7-ao-2
Published	02/10/2024	e209096b5ddf412986e7b8a2f9b4edc7-ao-3
Published	02/10/2024	e209096b5ddf412986e7b8a2f9b4edc7-ao-4
Published	02/10/2024	e209096b5ddf412986e7b8a2f9b4edc7-ao-5
Published	02/10/2024	The rough part of the RA develops from the {{c1::primitive atrium}} of the heart tube.e.g. {{c2::pectinate muscles}} and {{c2::crista terminalis}}&nbs…
Published	02/10/2024	The {{c2::coronary sinus}} and {{c2::SA node}} develop from the {{c1::sinus venosus}} of the primitive heart tube.
Published	02/10/2024	The {{c1::left subclavian}} vein joins with the {{c1::left internal jugular}} vein to form the {{c2::left brachiocephalic}} vein, and we know that thi…
Status	Last Update	Fields