Anat: Adult Derivatives Of Fetal Structures

Question 0

Urachus

Answer 0

Median umbilical ligament

Question 1

Umbilical artery

Answer 1

Medial umbilical ligament

Question 2

Ductus venosus

Answer 2

Ligamentum venosum

Question 3

Umbilical vein

Answer 3

Ligamentum Teres

Question 4

Fossa ovale

Answer 4

Fossa ovalis

Question 5

Opening of the thyroglossal duct

Answer 5

Foramen cecum

Question 6

Ductus arteriosus

Answer 6

Ligamentum arteriosum

Question 7

Primitive ventricle

Answer 7

Left ventricle

Question 8

Bulbus cordis

Answer 8

Right ventricle

Question 9

Sinus venosus

Answer 9

R horn: right atrium

L horn: coronary sinus

Question 10

Truncus arteriosus

Answer 10

Partitioned to form:
Aorta
Pulmonary trunk

Question 11

First aortic arch

Answer 11

Maxillary artery

External carotid artery

Question 12

Second aortic arch

Answer 12

Stapedial arteries

Question 13

Third aortic arch

Answer 13

Proximal: common carotid
Distal: ICA

Question 14

Fourth aortic arch

Answer 14

Left: arch of the aorta
Right: subclavian artery

Question 15

Fifth aortic arch

Answer 15

No vascular derivatives!

Question 16

Sixth aortic arch

Answer 16

Left:
Left pulmonary a. (Proximal)
Ductus arteriosus (Distal)

Right:
Right pulmonary a. (Proximal)
Distal degenerates

Question 17

Gubernaculum

Answer 17

Round ligament