What day of gestation does the fetal heart beat?
17
What vessel carries oxygenated blood from the placenta to the fetus?
Placental vein
What is the ductus venosus?
A branches from umbilical vein that bypasses hepatic sinusoids, thus comm. directly with IVC
Describe the difference between fibrous and serous pericardium.
Serous = "epicardium"
Fibrous = "parietal"
Heterotopic (thyroid or thymus) or neoplastic things can happen here
The endocardium is thicker in the---atria or ventricles?
Atria
Where do dense-core granules occur?
Atrial myocytes
What is the eustachean valve?
An inconstant, rudimentary valve in the IVC, designed to direct blow flow into the FO during fetal life.
Another name for the outflow tract.
Infundibulum conus
What separates the inflow and outflow tracts?
The crista superventricularis, a muscular arch
Where is myocyte disarray normal?
Within the trabeculated musculature of the right ventricle
What is idiopathic hypertrophic subaortic stenosis (IHSS)?
Muscle fiber disarray involving the intermediate bublospiral muscles of tne intraventricular septum
Define the triangle of Koch
1. Coronary sinus
2. Membranous IVS
3. Above TV annulus
