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

Rejection of heliocentrism, Rejection of Heliocentrism: This happened...

Rejection of Heliocentrism: This happened  in the year  1918 when the astronomer Harlow Shapley (1885-1972) first surveyed the size and shape of  the Milky Way Galaxy. He  sh

Another aneroid barometer, Another aneroid barometer Stretch a piece o...

Another aneroid barometer Stretch a piece of thin rubber in excess of the mouth of a small glass jar. Wind thread or string over the rubber to secure it and then put a ring of

Technology forecasting, Technology forecasting: With such power of scie...

Technology forecasting: With such power of science in relation to technology, and consequently to satisfy social need, the question arises, can technologies of the future be fo

Explain about the alluvial soils, Explain about the Alluvial soils All...

Explain about the Alluvial soils Alluvial soils are characterised by their extreme depth, often several hundred feet, and a grey or greyish brown colour. Their texture varies

Explain the categories of nerves system, Explain the Categories of Nerves S...

Explain the Categories of Nerves System The nerves are divided into two systems: sympathetic and parasympathetic. They constitute the autonomic system (auto: independent from t

Electricity, Draw a diagram of one battery connected to two light bulbs

Draw a diagram of one battery connected to two light bulbs

Explain two types of transferases, Explain two types of transferases ? ...

Explain two types of transferases ? a) Alanine aminotransferase Alanine + a-ketoglutarate ↔ glutamate + pyruvate b) Aspartate aminotransferase (AST) Asparate + a-ketogl

Scientific method, The effect of varying the pH of the yeast solution on th...

The effect of varying the pH of the yeast solution on the functioning of an enzyme catalase

Explain fungiform papillae, Explain Fungiform papillae: These are. situ...

Explain Fungiform papillae: These are. situated mainly at the tip and the edges of the tongue. They have a flat, rounded head like fungus. The fungiform papillae are rich in bl

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