Heart

Question 1

forms the right ventricle and the outflow tract (smooth part) of both ventricles

Answer 1

bulbus cordis

Question 2

forms the coronary sinus

Answer 2

left horn of Sinus Venosus

Question 3

forms the AV node and AV bundle

Answer 3

left horn of Sinus Venosus

Question 4

forms the smooth part of the right atrium

Answer 4

right horn of the sinus venosus

Question 5

forms the SA node

Answer 5

sinus venosus

Question 6

what do the right common and right anterior carinal veins become?

Answer 6

SVC

Question 7

What malformation of the embryological heart causes transposition of the great ventricles?

Answer 7

Failure of the truncus arteriosus to twist due to improper migration of neural crest cells to the TA.

Question 8

Where does erythropoiesis occur in the fetus?

Answer 8

Yolk sac (3-8 wks)
Liver (6-30 wks)
Spleen (9-28 wks)
Bone Marrow (28 wks and on)

Question 9

What drug would you give to close a patent ductus arteriosus?

Answer 9

Indomethacin

Question 10

What drug to maintain a PDA?

Answer 10

prostaglandins

Question 11

function of the ductus venosus

Answer 11

transmits oxygenated blood from the umbilical v. to the IVC (bypasses hepatic circulation)

Question 12

function of foramen ovale

Answer 12

transmits oxygenated blood from right to left ventricle for systemic circulation

Question 13

function of the ductus arteriosus

Answer 13

sends deoxygenated blood from the pulmonary a. to the aorta (after its branches) to go to the lower parts of the body