Question

Why is ADH also called vasopressin?

   Why is ADH also called vasopressin?

Anatomy and Physiology of Animals

Anatomy and Physiology of Animals

Gordon Betts, Peter… 1st Edition

Chapter 25, Problem 48

Instant Answer

Solved by Expert Sam Limsuwannarot

06/26/2020

Step 1

Its primary function is to regulate the balance of water in the body by controlling the amount of water reabsorbed by the kidneys. When ADH is released, it causes the kidneys to retain water, leading to a decrease in urine production and an increase in blood Show more…

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Why is ADH also called vasopressin?

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Key Concepts

Dual Functional Role in Homeostasis

This concept highlights the hormone's dual role in maintaining body homeostasis through both renal water conservation and regulation of blood vessel tone. Its ability to perform two distinct functions—controlling water balance and influencing cardiovascular function—explains the dual nomenclature and underscores its significance in the overall regulation of physiological stability.

Vasoconstrictive (Vasopressor) Action

This concept pertains to the hormone's effect on blood vessels. In addition to its role in water retention, ADH causes vasoconstriction, which is the narrowing of blood vessels. This action increases blood pressure, and because of this effect, the hormone is alternatively known as 'vasopressin'.

Antidiuretic Function

This concept refers to the hormone's ability to reduce water excretion by the kidneys. It works by enhancing water reabsorption in the renal tubules, which helps maintain the body's fluid balance and prevents dehydration. This is the primary function implied by the term 'antidiuretic hormone (ADH)'.

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