MRCS Embryology Flashcards
1
Q
Ductus arteriosus arises from? Along with?
A
Sixth aortic arch
Also left pulmonary artery
2
Q
Common carotid comes from embryologically?
A
Third aortic arch
3
Q
Arch of aorta is embroylogically from?
A
Left fourth aortic arch
4
Q
Bicornuate uterus forms from what embryological abnormality?
A
Mullerian duct
5
Q
What are Mullerian ducts and what do they form?
A
Paramesonephric ducts forming the female reproductive organs
6
Q
Wolffian ducts are what and form what?
A
Mesonephric ducts - form male reproductive parts of epididymis vas and seminal vesicles
7
Q
What does the vitelline duct form?
A
Meckels diverticulum
8
Q
Formation of the external male genitalia depends on what hormone?
A
Dihydrotestosterone
9
Q
When do the cerebral hemispheres appear embryologixally as 2 hollow buds?
A
Week 4
