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ADH, responsible for reabsorption of water and reduction in urine volume is synthesised by
- a)Posterior pituitary gland
- b)Juxta glomerular apparatus
- c)Hypothalamic nuclei
- d)Adenohypophysis
Correct answer is option 'C'. Can you explain this answer?
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ADH, responsible for reabsorption of water and reduction in urine vol...
Synthesis of ADH by the Hypothalamic Nuclei
ADH (Antidiuretic hormone), also known as vasopressin, is a hormone that helps the body to conserve water by reducing the amount of urine produced. ADH is synthesised by the hypothalamic nuclei, specifically the supraoptic and paraventricular nuclei, which are located in the hypothalamus region of the brain.
Role of ADH in Water Reabsorption
ADH plays a crucial role in regulating the body's water balance by controlling the amount of water reabsorbed into the bloodstream through the kidneys. When the body senses that there is a decrease in blood volume or an increase in blood osmolality (concentration of solutes), the hypothalamus signals the pituitary gland to release ADH.
ADH then travels to the kidneys and binds to receptors on the cells of the collecting ducts. This binding stimulates the insertion of aquaporin-2 channels into the cell membrane, allowing water to be reabsorbed from the urine back into the bloodstream. As a result, the volume of urine decreases, and water is conserved in the body.
Conclusion
In summary, ADH is synthesised by the hypothalamic nuclei and plays a crucial role in regulating the body's water balance by reducing the amount of urine produced. It does so by stimulating the reabsorption of water from the urine back into the bloodstream through the kidneys.
ADH (Antidiuretic hormone), also known as vasopressin, is a hormone that helps the body to conserve water by reducing the amount of urine produced. ADH is synthesised by the hypothalamic nuclei, specifically the supraoptic and paraventricular nuclei, which are located in the hypothalamus region of the brain.
Role of ADH in Water Reabsorption
ADH plays a crucial role in regulating the body's water balance by controlling the amount of water reabsorbed into the bloodstream through the kidneys. When the body senses that there is a decrease in blood volume or an increase in blood osmolality (concentration of solutes), the hypothalamus signals the pituitary gland to release ADH.
ADH then travels to the kidneys and binds to receptors on the cells of the collecting ducts. This binding stimulates the insertion of aquaporin-2 channels into the cell membrane, allowing water to be reabsorbed from the urine back into the bloodstream. As a result, the volume of urine decreases, and water is conserved in the body.
Conclusion
In summary, ADH is synthesised by the hypothalamic nuclei and plays a crucial role in regulating the body's water balance by reducing the amount of urine produced. It does so by stimulating the reabsorption of water from the urine back into the bloodstream through the kidneys.
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ADH, responsible for reabsorption of water and reduction in urine vol...
ADH is stored and released by neurohypophysis.
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ADH, responsible for reabsorption of water and reduction in urine volume is synthesised bya)Posterior pituitary glandb)Juxta glomerular apparatusc)Hypothalamic nucleid)AdenohypophysisCorrect answer is option 'C'. Can you explain this answer?
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