Fetal Heart (Histology for Path) Flashcards Preview

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Flashcards in Fetal Heart (Histology for Path) Deck (12)
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1

What day of gestation does the fetal heart beat?

17

2

What vessel carries oxygenated blood from the placenta to the fetus?

Placental vein

3

What is the ductus venosus?

A branches from umbilical vein that bypasses hepatic sinusoids, thus comm. directly with IVC

4

Describe the difference between fibrous and serous pericardium.

Serous = "epicardium"

Fibrous = "parietal"

Heterotopic (thyroid or thymus) or neoplastic things can happen here

5

The endocardium is thicker in the---atria or ventricles?

Atria

6

Where do dense-core granules occur?

Atrial myocytes

7

What is the eustachean valve?

An inconstant, rudimentary valve in the IVC, designed to direct blow flow into the FO during fetal life.

8

Another name for the outflow tract.

Infundibulum conus

9

What separates the inflow and outflow tracts?

The crista superventricularis, a muscular arch

10

Where is myocyte disarray normal?

Within the trabeculated musculature of the right ventricle

11

What is idiopathic hypertrophic subaortic stenosis (IHSS)?

Muscle fiber disarray involving the intermediate bublospiral muscles of tne intraventricular septum

12

Define the triangle of Koch

1. Coronary sinus

2. Membranous IVS

3. Above TV annulus