What Is the Difference between ADH and Aldosterone

Difference between ADH and aldosterone is that ADH makes the tubules more permeable to water, while aldosterone makes the tubules more permeable to sodium ions, hence enhancing water reabsorption by generating osmotic pressure.

ADH (Anti-diuretic hormone) and aldosterone are two types of hormones that enhance water reabsorption in the nephron. The hypothalamus makes ADH, and the posterior pituitary gland stores it and lets it out. It is sometimes called vasopressin.

The adrenal cortex makes aldosterone and lets it out into the blood. Both hormones are released by the body when the blood pressure is low. Both hormones affect the nephron’s collecting tubules and distal convoluted tubules (DCT).

Difference between ADH and aldosterone post explains about What is the ADH hormone?, What is aldosterone? and Difference between ADH and Aldosterone.

1. What is the ADH hormone?

2. What is aldosterone?

3. Difference between ADH and Aldosterone

What is the ADH hormone?

ADH is a peptide hormone produced by the pituitary gland and secreted into the bloodstream to prevent dilute urine output. The posterior pituitary gland stores and secretes ADH, which is made in the hypothalamus. It is ADH’s primary function to maintain the body’s fluid balance by regulating the amount of water that is excreted in the urine. Therefore, ADH generates concentrated urea (diuresis).

The osmoreceptors in the hypothalamus monitor the blood’s osmolarity level. These osmoreceptors trigger the pituitary gland to release ADH when blood osmolarity fall below a certain level. Generally, collecting tubules of the nephron are impermeable to water. But, ADH stimulates aquaporins in the membrane of the collecting tubules.

Aquaporins are a type of channel protein that moves water back into the bloodstream from the tubular cell wall. This could make the blood plasma less osmotic while making the urine more osmotic. A reduction in blood pressure and volume triggers the release of ADH. Through vasoconstriction, ADH also works on the arterioles to raise blood pressure. Nausea and vomiting are also two things that make the ADH hormone come out.

What Is the Difference between ADH and Aldosterone

Function of ADH (Anti-diuretic hormone)

What is aldosterone?

Aldosterone is a corticosteroid hormone that causes the nephron to take in more sodium. This controls the balance of water and salt in the body. Aldosterone is classified as a mineralocorticoid since it controls the body’s water and salt balance. The adrenal cortex produces and releases aldosterone. Adrenal aldosterone is primarily responsible for raising urinary sodium ion concentrations in the blood.

The renin-angiotensin-aldosterone system, which includes aldosterone and the hormones renin and angiotensin, is tightly linked to aldosterone’s activity. The renin-angiotensin-aldosterone system is turned on when blood pressure goes down. This is because less blood flows to the kidneys when blood pressure goes down.

Renin is the hormone that releases angiotensin, which in turn releases aldosterone. When there are more sodium ions in the blood, the osmolarity of the blood drops.  The passive reabsorption of water from the kidney tubules may increase in response to the decreased osmolarity of the blood.

What Is the Difference between ADH and Aldosterone

Functions of Aldosterone

Difference between ADH and Aldosterone

Definition

The pituitary gland secretes ADH (anti-diuretic hormone), a peptide hormone that prevents the generation of dilute urine. Aldosterone is a corticosteroid hormone that causes the nephron to take in more sodium. This controls the balance of water and salt in the body.

Type

ADH (anti-diuretic hormone) is a peptide hormone. Aldosterone is a steroid hormone.

Secretion

The hypothalamus is responsible for the synthesis of ADH, while the posterior pituitary gland is responsible for its secretion. The adrenal cortex is responsible for the synthesis as well as the secretion of aldosterone.

Role

The DCT and collecting tubules become more permeable to water with the help of ADH. The DCT and collecting tubules are more permeable to sodium ions when aldosterone is present.

Significance

The activity of ADH has a direct impact on the amount of water that is reabsorbed from the tubules. The osmotic pressure created by aldosterone promotes water absorption.

Blood Vessels

Vasoconstriction is the mechanism by which ADH raises blood pressure. Blood vessels are unaffected by aldosterone.

Release

ADH is secreted in response to blood hypertonicity. In response to many stimuli, including an increase in plasma angiotensin III, serum potassium concentrations, and stimulation of stretch receptors in the atria, aldosterone is secreted into the bloodstream.

Summary

Both ADH and aldosterone are examples of hormones that play a role in increasing the amount of water that is reabsorbed by the nephrons. The DCT and collecting tubules of the nephron are targets of the actions of both ADH and aldosterone. The peptide hormone ADH is directly responsible for an increase in the permeability of water. Aldosterone, on the other hand, is a steroid hormone that makes the body re-absorbs water by raising the osmotic pressure of the blood vessels nearby.

FAQ

What Is the Difference between ADH and Aldosterone

Antidiuretic hormone (ADH) is a brain-produced hormone that reduces urine production.

Aldosterone makes sure that your body has the right amount of sodium and potassium.

Difference between ADH and aldosterone is that ADH makes the tubules more permeable to water, while aldosterone makes the tubules more permeable to sodium ions, hence enhancing water reabsorption by generating osmotic pressure.

Difference between Intermolecular and Intramolecular Forces of Attraction

Aldosterone is a steroid hormone that helps control blood pressure in a big way. Aldosterone makes sure that your body has the right amount of sodium and potassium.

ADH refers to a peptide hormone secreted by the pituitary gland.

The answer to the question of what is the difference between ADH and aldosterone has been found. You can learn more about enzymes and hormones at NotesHippo.com

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