General Science
Circulatory system
Organ system for circulating blood in animals
Overview
In vertebrates, the circulatory system is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the body. It includes the cardiovascular system, or vascular system, that consists of the heart and blood vessels. The circulatory system has two divisions, a systemic circulation or circuit, and a pulmonary circulation or circuit. Some sources use the terms cardiovascular system and vascular system interchangeably with circulatory system.
Source: Wikipedia — Circulatory system (CC BY-SA)
Key concepts
How Circulatory system connects to the ideas, people and events around it.
Vertebrates, also called craniates, are animals with a vertebral column and a cranium. The vertebral column surrounds and protects the spinal cord, while the cranium protects the brain.
An organ system is a biological system consisting of a group of organs that work together to perform one or more bodily functions. Each organ has a specialized role in an organism body, and is made up of distinct tissues.
The heart is a muscular organ found in humans and other animals. This organ pumps blood through the blood vessels. The heart and blood vessels together make up the circulatory system.
Blood vessels are the tubular structures of a circulatory system transporting blood in animal bodies.
Blood is a specialized form of connective tissue and body fluid in the circulatory system of humans and other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells of the body, and transports metabolic waste products away from those same cells.
The pulmonary circulation is a division of the circulatory system in all vertebrates. The circuit begins with deoxygenated blood returned from the body to the right atrium of the heart where it is pumped out from the right ventricle to the lungs.
Great vessels are the large vessels that bring blood to and from the heart.
An elastic artery is an artery with many collagen and elastin filaments in the tunica media, which gives it the ability to stretch in response to each pulse.
Revise Circulatory system
Flashcards and a quick quiz, built from this map.
Questions about Circulatory system
What is Circulatory system?
In vertebrates, the circulatory system is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the body. It includes the cardiovascular system, or vascular system, that consists of the heart and blood vessels. The circulatory system has two divisions, a systemic circulation or circuit, and a pulmonary circulation or circuit.
What are the key concepts related to Circulatory system?
The main concepts connected to Circulatory system include Vertebrate, Organ system, Heart, Blood vessel, Blood, Pulmonary circulation, Great vessels, Elastic artery. Each is linked on the map above with its own summary.
Which exams cover Circulatory system?
Circulatory system is part of General Science, which appears in the syllabus of UPSC CAPF, NDA, CDS, AFCAT, SSC CGL, SSC CHSL and 18 more exams.