What is the function of the antidiuretic hormone, Biology

What is the function of the antidiuretic hormone? Where is it made and which are the stimuli that enhance or decrease its secretion?

The antidiuretic hormone is secreted by the hypophysis (also called as pituitary) and it acts in the nephron tubules enhancing the resorption of water. When the body requires retaining water, for instance, in cases of blood loss and abrupt blood pressure lowering or in cases of abnormally high blood osmolarity, there is stimulus for ADH secretion.

When the body has an excess of water, as in cases of excessive ingestion or in abnormally low blood osmolarity, the secretion of ADH is blocked and the diuresis increases. ADH is also called as vasopressin since it enhances the blood volume and therefore heightens the blood pressure.

 

Posted Date: 7/16/2013 3:12:02 AM | Location : United States







Related Discussions:- What is the function of the antidiuretic hormone, Assignment Help, Ask Question on What is the function of the antidiuretic hormone, Get Answer, Expert's Help, What is the function of the antidiuretic hormone Discussions

Write discussion on What is the function of the antidiuretic hormone
Your posts are moderated
Related Questions
Describe the Capillarity Theory in respect of ascent of water in plants. Name the tissue included. Determine the initiation of muscle contraction. What is the role of Sarcoplas

Evaluating the degree of urinary obstruction: D.P. is a 63-year-old man who has been experiencing progressive difficulty with initiating the urinary stream and frequently needs to

Define Gastrointestinal tract - Excretion of Zinc in Humans? Majority of zinc is lost from the body in faeces. Endogenous zinc in the form of enzymes or metallo-proteins is sec

Determine about the Colloblast cell? The unique sticky discharge cells found in the tentacles of ctenophorans. They are used to capture prey, and although cnidoblasts resemble

Connecting implants to natural teeth and use as pier abutments The issue of connecting implants and teeth to support a fixed prosthesis is controversial and unresolved. The inh

Orientation to the Paediatric Unit   When the family arrives at the pediatric unit, they should be shown the room where their child will stay and the toilet facilities, the fan

Utilization of Soy Protein Concentrate Soy protein concentrates are used in food products for  their nutritional characteristics or for their functional properties or for both.

What is the concept of Mesonephric? Replaces the pronephros during development and is retained as functional kidney in adult fish and amphibians. Formed posterior to pronephros

LYMPH - Lymph is a mobile connective tissue comprising lymph plasma (fluid) and lymphcorpuscles (cells).   COMPOSITIO N - (i )      Lymph Plasma - It is simil

SIMPL E PROTEINS The proteins are made of amino acids only. Additional chemicals are absent. These are of two types -    (i) Fibrous        (ii) Globular ( i )