ADH (Antidiuretic Hormone) / Renal Physiology

ADH (Antidiuretic Hormone) / Renal Physiology/Water Regulation by Antidiuretic Hormone (ADH)/ Antidiuretic Hormone animation/Antidiuretic Hormone mechanism/Antidiuretic Hormone physiology/Antidiuretic Hormone function

The hypothalamus produces a polypeptide hormone known as antidiuretic hormone (ADH), which is transported to and released from the posterior pituitary gland. The principal action of ADH is to regulate the amount of water excreted by the kidneys. As ADH (which is also known as vasopressin) causes direct water reabsorption from the kidney tubules, salts and wastes are concentrated in what will eventually be excreted as urine. The hypothalamus controls the mechanisms of ADH secretion, either by regulating blood volume or the concentration of water in the blood. Dehydration or physiological stress can cause an increase of osmolarity above 300 mOsm/L, which in turn, raises ADH secretion and water will be retained, causing an increase in blood pressure. ADH travels in the bloodstream to the kidneys. Once at the kidneys, ADH changes the kidneys to become more permeable to water by temporarily inserting water channels, aquaporins, into the kidney tubules. Water moves out of the kidney tubules through the aquaporins, reducing urine volume. The water is reabsorbed into the capillaries lowering blood osmolarity back toward normal. As blood osmolarity decreases, a negative feedback mechanism reduces osmoreceptor activity in the hypothalamus, and ADH secretion is reduced. ADH release can be reduced by certain substances, including alcohol, which can cause increased urine production and dehydration.

[michaelchamberlain]

This video helped me a lot. Have you considered doing other water balancing hormones/systems within the nephron? A video of the effect of each hormone of the renin–angiotensin–aldosterone system would be phenomenal.

[ranendas]

Very nicely explained the function of ADH in Kidney. It's function is so important & thank Almighty for HIS best creation.

[afrahalmohammadi]

your way of explaination is Awsome ...very hlpful and easy

[praveenkumarsingh]

This video is very helpful for fast revision

[annawill]

Fantastic explanation...so much become clearer. I loved the TuKTuk sound in the background at 3:47

[annieoakley]

A couple of years ago now I had a routine blood test. I got a call from my doctor to come to his surgery straight away. My blood test showed that my sodium level was very low. I was then admitted to hospital. My diagnosis was SIADH (Syndrome of Inappropriate Anti Diuretic Hormone). I now must restrict my fluid intake and have regular blood tests to keep an eye on my sodium levels. I also take Urea powder.
My sodium levels are almost normal but it's going to be a lifelong process. I was going to the toilet of a night more than 4 times and urinating large amounts. I wondered why and now I know why.

[poojanarayan]

This video was amazing.thank you do much sir!

[bdc]

Where is the discription of V2 receptor sir

[carmafia]

What is connection of vasopressin with oxitocin when people having romance or sex what is the role of vasopressin in sex or romance