Monday, Sep 25, 2023
English News
  • Hyderabad
  • Telangana
  • AP News
  • India
  • World
  • Entertainment
  • Science and Tech
  • Sport
  • Business
  • Rewind
  • ...
    • NRI
    • View Point
    • cartoon
    • Columns
    • Education Today
    • Reviews
    • Property
    • Videos
    • Lifestyle
E-Paper
  • NRI
  • View Point
  • cartoon
  • Columns
  • Reviews
  • Education Today
  • Property
  • Videos
  • Lifestyle
Home | Education Today | Understanding The Functioning Of Blood Circulatory System

Understanding the functioning of blood circulatory system

This article is in continuation to the previous article that focused on body fluids and circulation. In today’s article, we will discuss circulatory pathways and its types. Circulatory pathways The circulatory patterns are of two types – open or closed. Open circulatory system is present in arthropods and molluscs in which blood pumped by the […]

By Telangana Today
Published Date - 11:59 PM, Sun - 24 July 22
Understanding the functioning of blood circulatory system
whatsapp facebook twitter telegram

This article is in continuation to the previous article that focused on body fluids and circulation. In today’s article, we will discuss circulatory pathways and its types.

Circulatory pathways

The circulatory patterns are of two types – open or closed.

Open circulatory system is present in arthropods and molluscs in which blood pumped by the heart passes through large vessels into open spaces or body cavities called sinuses.

Closed circulatory system is present in Annelids and chordates in which the blood pumped by the heart is always circulated through a closed network of blood vessels. This pattern is considered to be more advantageous as the flow of fluid can be more precisely regulated.

All vertebrates possess a muscular chambered heart.

Fishes have a 2-chambered heart with an atrium and a ventricle.

Amphibians and the reptiles (except crocodiles) have a 3-chambered heart with two atria and a single ventricle, whereas crocodiles, birds and mammals possess a 4-chambered heart with two atria and two ventricles.

In fishes the heart pumps out deoxygenated blood which is oxygenated by the gills and supplied to the body parts from where deoxygenated blood is returned to the heart (single circulation).

In amphibians and reptiles, the left atrium receives oxygenated blood from the gills/lungs/skin and the right atrium gets the deoxygenated blood from other body parts. However, they get mixed up in the single ventricle which pumps out mixed blood (incomplete double circulation).

In birds and mammals, oxygenated and deoxygenated blood received by the left and right atria respectively passes on to the ventricles of the same sides. The ventricles pump it out without any mixing up, i.e., two separate circulatory pathways are present in these organisms, hence, these animals have double circulation.

Telangana Today Whatsapp
  • Follow Us :
  • Tags

Related News

Latest News

  • Opinion: G20 and the evolving world order

    3 hours ago
  • Editorial: Restore electoral democracy

    3 hours ago
  • Bengaluru Bandh tomorrow: Section 144 to be imposed, schools and colleges shut

    3 hours ago
  • KTR, Owaisi raise concern on proposed delimitation of Lok Sabha seats

    4 hours ago
  • Asian Games success makes strong case for including cricket in 2028 Los Angeles Olympics

    4 hours ago
  • Khairtabad Ganesh: Hyderabad traffic police advice people to avoid these routes; details inside

    4 hours ago
  • Hyderabad: Musical fountains add charm to Durgam Cheruvu

    4 hours ago
  • Minister Harish Rao slams Governor’s rejection of MLC candidates

    4 hours ago

company

  • Home
  • About Us
  • Contact Us

business

  • Subscribe

telangana today

  • Telangana
  • Hyderabad
  • Latest News
  • Entertainment
  • World
  • Andhra Pradesh
  • Science & Tech
  • Sport

follow us

© Copyrights 2022 TELANGANA PUBLICATIONS PVT. LTD. All rights reserved. Powered by Veegam