ZOO 4605 Lecture Notes - Lecture 4: Patent Ductus Arteriosus, Endocardium, Trachea
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ZOO 4605-A001
05/23/18
Newborn circulation
oThe two umbilical anterior become obliterated umbilical artery
Remnants become two ligaments on inside wall of the abdomen
Umbilical ligaments
Slide 7 memorize
oAortic arches
oAt the beginning we have six arches or aorta
Number 5 degenerates
Number 1
First aortic arch right and left maxillary artery and external carotid
artery
Numbe r2
Right and left gives rise to hyoid and stapedial artery
Number 3 right and left
Give part of common carotid and internal carotid
Number 4
Number 6
Right side give sto right pulmonary arter
Left side gives to left pumonary artery and ligamentum arteriosum
Umbilical vein beocmes ligamentum teres
Vitlline vein
oRiht side gives rise to superior mesenteric vein and inferior vena cava
oLeft side gives to portal vein
Ebsteins anomaly
oAbnormal tricuspid valve s/s
Big gap on right side of heart
Ventricular fibrillation
Looks like zig zag on EKG
Hypercapnia
Cyanosis
Respiratory issues
oTx is surgery
Atresia
oNo tissue, no muscle, no nerve
oUpper and lower parts are only connected by small membrane or fascia
Stenosis
oStenosis is narrowing
oNormal diameter of wall is smaller than normal
Tricuspid atresia means the valve is missing and could not develop in time
oRight ventricle is collapsed
oTx depends on degree fo disorder
In 10% the have risk of endocarditis
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Document Summary
The two umbilical anterior become obliterated umbilical artery. Remnants become two ligaments on inside wall of the abdomen. Slide 7 memorize: aortic arches, at the beginning we have six arches or aorta. First aortic arch right and left maxillary artery and external carotid artery. Right and left gives rise to hyoid and stapedial artery. Give part of common carotid and internal carotid. Left side gives to left pumonary artery and ligamentum arteriosum. Riht side gives rise to superior mesenteric vein and inferior vena cava. Ebsteins anomaly: abnormal tricuspid valve s/s. Atresia: no tissue, no muscle, no nerve, upper and lower parts are only connected by small membrane or fascia. Stenosis is narrowing: normal diameter of wall is smaller than normal. Tricuspid atresia means the valve is missing and could not develop in time o o. Iv septal defect: muscle part of iv septum coul be missing, membranous part coul be missing o.
