Newborn Blood Circulation – CV Physiology

Newborn Blood Circulation:

Newborn blood circulation changes at birth and the umbilical cord is clamped and the baby no longer receives oxygen and nutrients from the mother. With the first breaths of life, the lungs begin to expand. As the lungs expand, the alveoli in the lungs are cleared of fluid. An increase in the baby’s blood pressure and a significant reduction in the pulmonary pressures reduces the need for the ductus arteriosus to shunt blood. These changes promote the closure of the shunt. These changes increase the pressure in the left atrium of the heart, which decrease the pressure in the right atrium. The shift in pressure stimulates the foramen ovale to close.

The closure of the ductus arteriosus and foramen ovale completes the transition of fetal blood circulation to newborn blood circulation.

References for Newborn Blood Circulation:
http://www.chop.edu/conditions-diseases/blood-circulation-fetus-and-newborn
https://www.youtube.com/watch?v=-IRkisEtzsk&t

 


Watch how the blood flows through the baby’s circulation and compare it to what happens in the fetus. Rishi is a pediatric infectious disease physician and works at Khan Academy. Created by Rishi Desai.

Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/nclex-rn-circulatory-system/fetal-circulation-ddp/v/fetal-structures-in-an-adult?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn

Missed the previous lesson? https://www.khanacademy.org/test-prep/nclex-rn/nclex-rn-circulatory-system/fetal-circulation-ddp/v/fetal-circulation-right-before-birth?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn

NCLEX-RN on Khan Academy: A collection of questions from content covered on the NCLEX-RN. These questions are available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License (available at http://creativecommons.org/licenses/by-nc-sa/3.0/us/).

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We’ve also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s NCLEX-RN channel: https://www.youtube.com/channel/UCDx5cTeADCvKWgF9x_Qjz3g?sub_confirmation=1
Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy

(Visited 120 times, 1 visits today)

Other Videos You Might Like:

LEAVE YOUR COMMENT

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.