Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • In mammalian embryos, there is a narrow ductus arteriosus that allows communication between the pulmonary aorta and the carotid-systemic aorta. However, as the embryo dev

In mammalian embryos, there is a narrow ductus arteriosus that allows communication between the pulmonary aorta and the carotid-systemic aorta. However, as the embryo develops into an adult, this connection closes, resulting in the following condition, that is

Option: 1

Fossa-ovalis


Option: 2

Carotico pulmonary aperture


Option: 3

Ligamentum arteriosus


Option: 4

None of the above


Answers (1)

best_answer

The correct answer is "Ligamentum arteriosus."

During fetal development, the ductus arteriosus allows blood to bypass the lungs since the fetus receives oxygen from the placenta. After birth, the lungs take over the oxygenation process, and the ductus arteriosus closes. It constricts and transforms into the ligamentum arteriosus, a fibrous cord made of connective tissue. The ligamentum arteriosus is a non-functional remnant of the fetal ductus arteriosus and is found between the pulmonary artery and the aorta in adult humans.Hence, the correct answer is option 3. 

Posted by

Devendra Khairwa

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

NEET UG 2026 Paper Leak: Biology lecturer, part of NTA's paper-setting committee for NEET, arrested
anam-khan

NEET Paper Leak: Student dies by suicide in Rajasthan’s Sikar amid controversy
anam-khan

NTA opens NEET UG 2026 re-exam correction window to modify address, select choice of cities

Latest Question