Embryology

Question 0

Bulbus cordis

Answer 0

Smooth parts of L and R ventricles

Question 1

Truncus arteriosus

Answer 1

Ascending aorta and pulmonary trunk

Question 2

Primitive ventricle

Answer 2

Trabeculated R and L ventricle

Question 3

Primitive atria

Answer 3

Trabeculated L and R atria

Question 4

Left horn of sinus venosus

Answer 4

Coronary sinus

Question 5

Right horn of sinus venosus

Answer 5

Smooth part of RA

Question 6

Right common cardinal vein and right anterior cardinal vein

Answer 6

SVC

Question 7

Fetal erythropoiesis

Answer 7

Young Liver Synthesizes Blood

Yolk sac- 3 to 10 wks
Liver- 6wk to birth
Spleen- 15-30 wks
Bone marrow- 22wks to adult

Question 8

Ductus venosus

Answer 8

Umbilical vein bypasses liver and enters IVC

Question 9

Foramen ovale

Answer 9

Oxygenated blood enters via IVC and diverted thru foramen ovals and out of aorta

Question 10

Ductus arteriosus

Answer 10

Deoxygenated blood enters via SVC then goes to pulmonary artery and bypasses lungs to the descending aorta

Question 11

Highest O2 content in fetus

Answer 11

IVC

Question 12

Umbilical vein

Answer 12

Ligamentum teres hepatis (in falciform ligament)

Question 13

UmbiLical arteries

Answer 13

MediaL umbilical ligaments

Question 14

Ductus arteriosus

Answer 14

Ligamentum arteriosum

Question 15

Ductus venosus

Answer 15

Ligamentum venosum

Question 16

Foramen ovale

Answer 16

Fossa ovalis

Question 17

AllaNtois

Answer 17

Urachus-mediaN umbilical ligament

Question 18

Notochord

Answer 18

Nucleus pulposus of intervertebral disc