Homeostasis, Biology

HOMEOSTASIS -

Homeo = same,   Stasis = state

Living beings maintain their internal environment by self regulating system, it is called homeostasis.

Term coined by W. B. Cannon.

Examples -

1.       When we enter in a cinema hall from bright light, nothing is visible for a moment, within few seconds every thing is adjustable.

2.       In exercise heart beat is increased for the time being, due to rest it becomes normal. After heavy exercise temperature of body is increased & it becomes normal after some time. Hypothalamus is thermoregulatory centre of body.

872_homeostasis.png

3.       Regulation of sugar level in blood by insulin (-ve) & glucagon (+ve).

4.       Kidney maintains acid base balance in body i.e. give out acidic urine from basic blood.

780_homeostasis1.png

Posted Date: 10/8/2012 5:42:05 AM | Location : United States







Related Discussions:- Homeostasis, Assignment Help, Ask Question on Homeostasis, Get Answer, Expert's Help, Homeostasis Discussions

Write discussion on Homeostasis
Your posts are moderated
Related Questions
Orthopedic Prophylactic antistaphylococcal drugs administered preoperatively can decrease the incidence of both early and late infection following joint replacement. They also

Classification of Enzymes : Enzymes are classified  into the following six main categories in according with  the nature of reaction the catalyze: 1.      Oxidoreductases

Q. Pathology of mitral regurgitation? During left ventricular systole as the pressure rises in left ventricle, blood is pumped simultaneously both into aorta and left atrium. T

PKU is a recessive disorder. Suppose two people who were heterozygous for PKU married and had a child. What is the probability that the child will have PKU?

Nemerteans - Regeneration in Invertebrates Nemerteans as well possess remarkable regenerative ability, as even a small fragment can regenerate into a complete worm. Nemerteans

Animals - Slow Moving Waters Zooplankton are common here and include an assemblage of protozoa and smaller crustacean, such as water flies, and copepods. Neuston occurring her

Platyhelminthes (Flatworms) - Regeneration in Invertebrates Between flatworms the turbellarians, (mostly fresh water species and fresh water and terrestrial triclads) routinel

Define Descending type of paper chromatography? In descending chromatography, the movement or flow of mobile phase is in downward direction. In this technique the solvent is ke

Assuming that all human proteins are 300 amino acids long, what fraction of the total number of possible different proteins is found in the human body?

Explain the Importance of Biochemical Tests? Specific series of biochemical tests have been developed for fast identification of microorganisms in laboratories. These biochemic