Overview of topic
In fish, the heart has only two chambers. Heart pumps out carbon enriched blood to the gills where deoxygented blood becomes oxygenated and then oxygenated blood is supplied to the body parts, this type of circulation is single circulation.
Amphibians, reptiles, aves and mammals have double circulatory systems. There are two types of double circulatory systems.
Incomplete double circulatory system: In reptiles and amphibians the heart is three chambered. Their hearts have one ventricle and two atria. Left atrium receives oxygen rich blood from the lungs/skin/gills.
Deoxygenated blood is collected in the right artrium from the other parts of the body.
Ventricle receives oxygenated and deoxygenated blood. In ventricles both types of blood are mixed. Ventricles pump this mixed blood throughout the body.
Complete double circulation: Mammals and aves have four heart chambered. Heart has two atria and two ventricles. In this type, the left atrium receives oxygenated blood and the right artria receives deoxygenated blood, similarly blood is passed through the both ventricles. In this type of circulation mixing of blood does not occur.
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FAQs (Frequently Asked Questions)
1. Can I score full marks in Class 11 Biology Chapter 18 Topics – Circulatory Pathway?
Yes, you can easily score full marks in Class 11 Biology Chapter 18 Topics – Double Circulation All you need to do to score full marks in Maths is frequent practice. All of the concepts should be clear in this subject since many questions are expected in the board examination from this chapter. This will help you make your confidence up and well versed with the chapter and can score full marks in the exam. You should also refer to the NCERT Solutions of this chapter.
2. What are the benefits of solving NCERT solutions by Infinite Learn?
NCERT solutions by Infinite Learn is designed strictly according to the latest CBSE syllabus and it is the best way to study this chapter containing all the important points and formulas. The subject matter experts designed these NCERT solutions with an aim to make the learning process a most convenient way.
3. How can I download the NCERT Solutions of this exercise from Infinite Learn website?
It is very easy to download the NCERT Solutions of this exercise from Infinite learn website. You just have to come at infinite learn official website and look for the Class 11 Biology Chapter 18 Topics – Double Circulation category under ‘NCERT Solutions’ section. After that you can easily use these Solutions. Downloading these solutions and study as per your convenience is our main aim.