Fetal-Postnatal Derivatives

Question 1

Fetal Structure:

Allantois –> Urachus

Answer 1

Postnatal Derivative:
Median umbilical ligament

Notes: Urachus is part of allantoic duct between bladder and umbilicus

Question 2

Fetal Structure:

Ductus Ateriosus

Answer 2

Postnatal Derivative:
Ligamentum arteriosum

Notes: Near left recurrent laryngeal nerve

Question 3

Fetal Structure:

Ductus Venosus

Answer 3

Postnatal Derivative:

Ligamentum arteriosum

Question 4

Fetal Structure:

Foramen Ovale

Answer 4

Postnatal Derivative:

Fossa ovalis

Question 5

Fetal Structure:

Notochord

Answer 5

Postnatal Derivative:

Nucleus pulposus

Question 6

Fetal Structure:

Umbilical arteries

Answer 6

Postnatal Derivative:

Medial umbilical ligaments

Question 7

Fetal Structure:

Umbilical veins

Answer 7

Postnatal Derivative:
Ligamentum teres hepatis (round ligament)

Notes: Contained in falciform ligament