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

Discuss about electric field, Discuss about electric field The electric...

Discuss about electric field The electric field is a vector quantity whose magnitude is the force per unit charge and points in the direction of the force on the positive test

Explain adverse effects of lamivudine, Adverse effects of lamivudine  B...

Adverse effects of lamivudine  Because lamivudine is also active against hepatitis B virus (HBV), HIV-positive patients with chronic HBV infection may experience a flare of hep

Probability concept of requirements vs risk of deficient, Define Probabilit...

Define Probability concept of requirements vs risk of deficient and excess intake? Figure best illustrates the concept of a requirement for an essential nutrient. The relations

How do contraceptive pills generally work, Q. How do contraceptive pills ge...

Q. How do contraceptive pills generally work? Contraceptive pills generally contain the hormones progesterone and estrogen. If taken daily from the 4th day after menses the abn

Genetics, 5. Maple syrup urine disease is a rare inborn error of metabolism...

5. Maple syrup urine disease is a rare inborn error of metabolism. It derives its name from the odor of the urine of affected individuals. If untreated, affected children die soon

Biology in ancient india, BIOLOGY IN ANCIENT INDIA - L A T E STONE ...

BIOLOGY IN ANCIENT INDIA - L A T E STONE AGE [10,000 - 20, 000 B.C) Man first cultivated wheat, barley, lentils & peas. In India rice was first cultivated at Meherga

Respiratory system of the phylum annelida characterized, Q. How is the resp...

Q. How is the respiratory system of beings of the phylum Annelida characterized? Respiration in annelids can be branchial or cutaneous. Cutaneous respiration takes place due to

State about visual system, State about visual system It is important fo...

State about visual system It is important for our visual system to  adapt to  recognize objects clearly  in  differing conditions of  light. The main mechanisms concerned with

#title.zoology., #question.why obelia is considered of special interest in ...

#question.why obelia is considered of special interest in zoology.

Obelia, why is obelia considered to of special interest in Zoology as an an...

why is obelia considered to of special interest in Zoology as an animal showing an intermediate grade of organisation?

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