Explore IDNLearn.com to discover insightful answers from experts and enthusiasts alike. Join our knowledgeable community and access a wealth of reliable answers to your most pressing questions.
Sagot :
Due to a valve known as the septum primum, blood cannot return from the left atrium to the right.
Describe septum primum.
A thin, crescent-shaped membrane called the septum primum descends from the primitive atrium's roof in the direction of the growing endocardial cushions. The single basic atrium is divided into left and right parts by it.
What is the origin of septum primum?
The septum primum first forms as a muscular ridge that expands in the direction of the endocardial cushion tissue of the growing AV valves.
- The original opening between the AV valves and the septum primum, known as the ostium primum, is finally sealed when it fuses with the cushion.
learn more about septum primum here
https://brainly.com/question/18505100
#SPJ4
We value your presence here. Keep sharing knowledge and helping others find the answers they need. This community is the perfect place to learn together. Thank you for trusting IDNLearn.com. We’re dedicated to providing accurate answers, so visit us again for more solutions.
