Define antidiuretic hormone - posterior pituitary, Science

Assignment Help:

Define Antidiuretic Hormone - Posterior Pituitary

Antidiuretic hormone or ADH, also known as vasopressin, is another polypeptide containing 9 amino acids. As the name of the hormone suggests, its major action is to prevent diuresis i.e., it reduces the rate of urine formation. This hormone acts on the distal tubules of the kidney controlling the reabsorption of water.

When the osmotic pressure is high, the osmoreceptors respond by stimulating the secretion of antidiuretic hormone which increases the reabsorption of water by the renal tubules. ADH is often called vasopressin because under the influence of this hormone, the smooth muscles of the intestine and blood vessels contract. Contraction of the muscle layer in the blood vessel wall increases the blood pressure. Hence the name vasopressin. Hence, in dehydrated or malabsorptive diseases, these hormones try to regulate the water and mineral balance of the body by adjusting the quantity of urine formation in the kidney.


Related Discussions:- Define antidiuretic hormone - posterior pituitary

The fujita scale is used to classify intensities of, The Fujita Scale is us...

The Fujita Scale is used to classify intensities of: Tornadoes

Define the functions of small intestine, Define the Functions of Small Inte...

Define the Functions of Small Intestine What functions does the small intestine perform? Can you list a few? Tally your responses with the functions enumerated herewith. The sm

What is a chemical compound, What is a chemical compound? By definition...

What is a chemical compound? By definition, a compound is a substance in which two or more different elements have combined. There are millions of examples of compounds all aro

Photosynthesis, Photosynthesis: Carbon dioxide + water +  solar energy ...

Photosynthesis: Carbon dioxide + water +  solar energy + minerals -> food +  oxygen Food made during photosynthesis may later be used for energy by the plant itself, or by a

Define caecum - part of large intestine, Define Caecum - Part of Large Inte...

Define Caecum - Part of Large Intestine This is the first part of the colon. Ileocolic valve opens from the ileum on the medial aspect of the caecum. The vermiform appendix is

Discuss handling of subpoena by mrd, Question 1 What is Quality assuran...

Question 1 What is Quality assurance? Explain JCAH Quality Assurance programme activities 2 Briefly discuss the AHIMA standards criteria to keep legally sound records. 3 Explai

Explain agglutination - antigen-antibody interaction, Explain Agglutination...

Explain Agglutination - Detection of Antigen-Antibody Interaction Agglutination - If Ag is present on the surface of cells, or can be made to coat these surfaces of cells, thes

Explain the regulation of blood composition, Explain the Regulation of Bloo...

Explain the Regulation of Blood Composition Each part of the nephron has different types of cells with different properties. An understanding of this is important to know how t

Minerals, Minerals  Minerals like coal, iron, copper, steel etc. are us...

Minerals  Minerals like coal, iron, copper, steel etc. are used in all kinds of industries and in every-day life. The rate of consumption of minerals  is increasing every year.

Oxidising substances , Oxidising Substances : It includes oxidising substa...

Oxidising Substances : It includes oxidising substances and the organic peroxides. Oxidising substances are by themselves not combustible but by feeding oxygen to other substances

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