NEET Biology Body Fluids and Circulation Notes

Read and download the NEET Biology Body Fluids and Circulation Notes. Designed for 2025-26, this advanced study material provides NEET Biology students with detailed revision notes, sure-shot questions, and detailed answers. Prepared by expert teachers and they follow the latest NEET, NCERT, and KVS guidelines to ensure you get best scores.

Advanced Study Material for NEET Biology Body Fluids and Circulation

To achieve a high score in Biology, students must go beyond standard textbooks. This NEET Body Fluids and Circulation study material includes conceptual summaries and solved practice questions to improve you understanding.

NEET Biology Body Fluids and Circulation Notes and Questions

 

Angiology − Study of blood vascular system.
William Harvey (a British scientist) is the ‘Father of Angiology’. He studied blood vascular system (BVS) in a live snake. His monograph on blood circulation was named, ‘Anatomical exercise on the motion of the heart and blood’.
Fabricius (Guru of William Harvey) discovered valves in (longer) veins.
Marcello Malpighii (Founder of histology) discovered blood capillaries.
BVS fi rst time developed in Phylum Annelida. Protozoans to Aschelminthes do not have heart or BVS.
Blood Vascular System is of 2−types.
1. Open blood vascular system.
2. Closed blood vascular system
 
1. OPEN BLOOD VASCULAR SYSTEM
 
• In this type of BVS the blood is fi lled in sinuses or lacunae which together for a large blood fi lled cavity called Haemocoel.
• Capillaries−network is lacking.
• Such system is present in all the members of Phylum Arthropoda and a few members of Phylum Mollusca (eg. Pila, Unio).
In echinoderms the BVS is very much reduced, and is called Haemal system.
 
2. CLOSED BLOOD VASCULAR SYSTEM
 
• In this type of BVS the blood does not come out of the vessels and, hence, haemocoel is lacking.
• The Capillaries−network is present.
• Such system is present in all the members of subphylum Vertebrata, phylum Annelida* and few members of Phylum Mollusca (eg. Octopus, Squid).
• * The Leech (an annelid), however, has haemocoelomic system, consisting of haemocoelomic channels (not true blood vessels) which are derived from coelomic cavity.
 
The closed blood vascular system is of 2−types.
 
Single Circulation System−
 
In such system, for one complete circulation through the body, the blood passes only once through the heart . Such animals, therefore, have only deoxygenated blood in the heart. Such heart is known as Venous heart, eg Fishes
 
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NEET NEET Biology Body Fluids and Circulation Study Material

Students can find all the important study material for Body Fluids and Circulation on this page. This collection includes detailed notes, Mind Maps for quick revision, and Sure Shot Questions that will come in your NEET exams. This material has been strictly prepared on the latest 2026 syllabus for NEET Biology. Our expert teachers always suggest you to use these tools daily to make your learning easier and faster.

Body Fluids and Circulation Expert Notes & Solved Exam Questions

Our teachers have used the latest official NCERT book for NEET Biology to prepare these study material. We have included previous year examination questions and also step-by-step solutions to help you understand the marking scheme too. After reading the above chapter notes and solved questions also solve the practice problems and then compare your work with our NCERT solutions for NEET Biology.

Complete Revision for Biology

To get the best marks in your NEET exams you should use Biology Sample Papers along with these chapter notes. Daily practicing with our online MCQ Tests for Body Fluids and Circulation will also help you improve your speed and accuracy. All the study material provided on studiestoday.com is free and updated regularly to help NEET students stay ahead in their studies and feel confident during their school tests.

What is included in the advanced study material for NEET Biology Chapter Body Fluids and Circulation?

Our advanced study package for Chapter Body Fluids and Circulation includes detailed concepts, diagrams, Mind Maps, and explanation of complex topics to ensure NEET students learn as per syllabus for 2026 exams.

How do Mind Maps for Biology Chapter Body Fluids and Circulation help in revision?

The Mind Maps provided for Chapter Body Fluids and Circulation act as visual anchors which will help faster recall during high-pressure exams.

Are these Biology resources suitable for both classroom teaching and self-study?

Yes, teachers use our NEET Biology resources for lesson planning as they are in simple language and have lot of solved examples.

Is this advanced study material for Chapter Body Fluids and Circulation free to download in PDF?

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Does this material cover rationalized content for the 2025-26 NEET session?

Yes, our subject matter experts have updated the Chapter Body Fluids and Circulation material to align with the rationalized NCERT textbooks and have removed deleted topics and added new competency-based questions.