Circulatory system, Biology

Assignment Help:

Circulatory System

Coelenterates and platyhelminths nutrients in sponges, respiratory gases and waste materials can easily diffuse through the intercellular spaces. Though, in higher animals the circulatory system gives a medium through which oxygen and nutrients from the environment reach all the tissues of the body and carbon dioxide also nitrogenous waste materials are removed from the body into the external environment. The circulatory system consists of generally blood, the blood spaces and a series of tubes called vessels. Circulatory systems can be split into a number of components along with similar functions. In addition to the circulating fluid, these contain:

i) A main propulsive organ, generally a heart which forces blood around in the body,

ii) An arterial system that serves to distribute blood and as a pressure reservoir,

iii) Capillaries, or in some animals blood spaces, where transfer of materials take place between blood and tissues, and

iv) The venous system which acts as a blood reservoir and as a system for returning blood to the heart.


Related Discussions:- Circulatory system

Coelomoducts in polyplacophora, Coelomoducts in Polyplacophora In Poly...

Coelomoducts in Polyplacophora In Polyplacophora the coelomoducts divide in the region of coelomostome and the gonadal cavities become closed off from pericardial coelom. The

Agro industrial-mineral supplements, Mineral supplements There are two...

Mineral supplements There are two major classes of mineral sources: inorganic and organic. Organic complexes, however, have been shown to be more effectively absorbed by the a

Explain the objectives of taxonomy, Explain the Objectives of Taxonomy ...

Explain the Objectives of Taxonomy Let us summarise the objectives of taxonomy: 1. To inventory the world flora and fauna 2. To provide a method for identification and co

What is an antigen, Q. What is an antigen? Antigen is any substance, in...

Q. What is an antigen? Antigen is any substance, infectious or particle agent recognized as foreign to the body. The contact of the antigen with the body promotes a defense rea

Functions of skin, FUNCTIONS OF SKIN - Skin performs various diverse fu...

FUNCTIONS OF SKIN - Skin performs various diverse functions, that is why it is called "jack of all trades". 1 .      Protection - The skin protects the internal soft or

Five kingdom classification, discuss the merits nd demerits of five kingdom...

discuss the merits nd demerits of five kingdom classification.

Nutritional management in inflammatory bowel disease, Q. Nutritional Manage...

Q. Nutritional Management in Inflammatory Bowel Disease? Adequacy of nutritional needs and minimizing stress on the inflamed or narrowed segment of the bowel are the main princ

Uses of microbes in industry-antibiotics, Normal 0 false fals...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Post removal -endodontics principles, Post removal Types of post : ...

Post removal Types of post : -Active threaded -Passive -Custom casted Cement used : -Traditional cement -bonded with a composite resin -Dentin-bonding agent -Pro

Function of the secretions of the seminal vesicle, Q. What is the function ...

Q. What is the function of the secretions of the seminal vesicle, prostate and bulbourethral glands in reproduction? These secretions along with sperm cells from the testicles

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd