The common atrium is subdivided into a left and right atrium by an interatrial septum, which consists of two parts: the septum primum and the septum secundum that partially overlap.
What is septum primum and septum secundum?
- The septum primum, which divides the right from the left, is a structure inside the primitive atrium.
- In the direction of the endocardial cushions, this septum descends.
- The foramen primum, a hole in this septum, keeps the blood flowing through the heart.
- The foramen secundum develops as the foramen primum shrinks in size.
What is the purpose of septum secundum?
- A muscular flap called the septum secundum plays a significant role in heart growth.
- It has a semi-lunar form and develops from the atrium's upper wall to the right of the septum primum and ostium secundum.
- It is crucial for the foramen ovale to close after birth.
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<u>The correct question is -</u>
The common atrium is subdivided into a left and right atrium by an interatrial septum, which consists of two parts: the septum ______ and the septum ______ that partially overlap.
The Answers are
1. F
2. T
3. T
The cell is the smallest functional unit of life, which is why it is sometimes referred to as the building block of life.
Answer:
True
Explanation:
<em>The three groups of organisms have the capability to cause different diseases in humans and other animals. The specific ones among them that can cause diseases are said to be pathogenic while those that are incapable of causing diseases are said to be non-pathogenic.</em>
Answer:
Option C.
our solar system, the Milky Way Galaxy, the universe
Explanation:
The Solar system comprises of the star and all its planets, comets, asteroids and also other bodies. It is very larger than a star.
The milky way galaxy comprises of group of solar systems that orbit around a central core . The galaxy normally have very big hole in their centre.
The Universe contain billions of galaxies and it comprises of everything, asteriod, moon, planet, star, solar system,galaxy.....
