Embryonic Structures in the Heart

Embryonic endocardial cushion becomes the:

Atrial septum and membranous interventricular septum; atrioventricular and semilunar valves

Embryonic vitelline artery becomes the:

Celiac trunk, superior/inferior mesenteric artery

Embryonic left horn of the sinus venosus becomes the:

coronary sinus

Embryonic bulbus cordis becomes the

smooth left and right ventricle

Embryonic primordial ventricle becomes the

The left and right trabeculated ventricle

Embryonic primordial artia becomes the

left and right trabeculated atria

Embryonic truncus arteriosis becomes the

pulmonary trunk and ascending aorta

Embryonic right common cardinal vein and right anterior cardinal vein becomes the

superior vena cava

Embryonic right horn of the sinus venosus becomes the

smooth right atria

Embryonic vitelline vein becomes

portal vein

Remnant of ductus venosus is

ligamentum venosum

Embryonic (cell) origin of endocardial cushion and aorticopulmonary septum

neural crest cells

Embryonic (cell) origin of endocardial cushion cells

neural crest cells and lateral plate mesoderm

Embryonic (cell) origin of aorticopulmonary septum

neural crest cells

Defect of 3rd aortic arch

aberrant internal carotid artery

Defect of 2nd aortic arch

persistent stapedial artery

Defect of 4th aortic arch

aberrant right subclavian artery

Umbilical vein drains oxygenated blood into fetal IVC via

liver or ductus venosus

Remnant of umbilical vein

ligamentum teres hepatis (falciform ligament)

remnant of umbilical arteries

medial umbilical ligaments

Vitelline refers to (yolk/placenta)

yolk

Umbilical refers to (yolk/placenta)

placenta

Where do abdominal aortic aneurysms (AAA) arise

below renal arteries but above aortic bifurcation

*infrarenal (between L1/L2 and L4)

Embryonic primitive pulmonary vein

Smooth left atrium

The _______ creates lung buds that grow in the pleural cavity

laryngotracheal diverticulum

The laryngotracheal diverticulum creates ______ that grow in the pleural cavity

lung buds

How are lung buds created

Gut tube creates outgrowth laryngotracheal diverticulum → laryngotracheal diverticulum creates lung buds in pleural cavity

Defect in left-right dynein during heart morphogenesis causes

dextrocardia

Peripheral edema can be caused by

heart and kidney failure

cirrhosis

venous thrombosis

venous insufficiency

in peripheral artery disease, calf claudications are caused by lesions in

superficial femoral artery

mesothelium becomes

parietal pleura

former parietal pleura becomes

visceral pleura

Remnant of ductus arteriosus is

ligamentum arteriosum