Explain the anti-diuretic hormone (adh), Science

Assignment Help:

Explain the Anti-Diuretic Hormone (ADH)

It is secreted by the pituitary gland and controls the ability of water to pass through the cells in the walls of the collecting ducts. If ADH is not present, then water cannot pass through the walls of the ducts. The more the ADH present, the more water can pass through. Just now we have studied about the specialized nerve cells called as osmoreceptors that are present in the hypothalamus of the brain. These cells, as you would recall, sense the Na concentration of the blood.

The nerve endings of these types of osmoreceptors are situated in the posterior pituitary gland and secrete ADH. Whether the Na concentration of the blood is high, the osmoreceptors secrete ADH. If the Na concentration of the blood is low, they do not secrete ADH. Actually, there is all time some very low level of ADH secreted from the osmoreceptors. Thus we can see that the electrolyte balance is always maintained by the kidneys.


Related Discussions:- Explain the anti-diuretic hormone (adh)

Explain hypoxia and its types, Explain Hypoxia and its Types Hypoxia is...

Explain Hypoxia and its Types Hypoxia is the oxygen deficiency at the tissue level below the physiological level. There are four types of hypoxia. Let's get to know them. 1.

List the methods of oil extraction, Q. List the methods of oil extraction? ...

Q. List the methods of oil extraction? The methods of oil extraction are: (i) traditional method (ghani); (ii) improved methods, such as hydraulic pressing, screw pressing, pre

Explain the colour blindness, Explain the Colour Blindness Normal indiv...

Explain the Colour Blindness Normal individuals possess three cone pigments viz. red, green and blue which are referred to as tri-chromates. Colour blindness refers to the part

Essential nutrients, Essential nutrients: Our body is a biochemical fac...

Essential nutrients: Our body is a biochemical factory which can make many compounds  for its needs. However, there are limits to this, and what our body cannot make has to be

Nitrogen cycle, Nitrogen Cycle: Nitrogen is vital part of many essentia...

Nitrogen Cycle: Nitrogen is vital part of many essential organic  compounds especially nucleic acids and proteins. It also forms a major part (79 per cent) of the atmosphere. I

Dating the past, Dating  the Past: Today, that  a particular  rock  i...

Dating  the Past: Today, that  a particular  rock  is a million ycars old, or a fossil is 50 thousand ycars old. For  instance, how do we estimate the duration of various geo

Explain the urea clearance test, Explain the Urea clearance test A test...

Explain the Urea clearance test A test of renal function based upon urea clearance. Urea is a waste product that is created by protein metabolism and excreted in the urine. The

Crop for local and distance markets, Q. When are conditions right for harve...

Q. When are conditions right for harvesting a crop for local and distance markets? The conditions right for harvesting a crop for local markets: harvest in the early morning t

Cross section of all three flood events - model of fall rive, For the model...

For the model of Fall River and Butte Creek in HEC-RAS, (a) Output the cross-section of all three flood events for station 9.8 on one figure. Include only the water surface and

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