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Decreasing the concentration of sodium ions in the blood will result in
- a)increased ADH secretion and increased aldosterone secretion
- b)Increased ADH secretion and decreased aldosterone secretion
- c)Decreased ADH secretion and increased aldosterone secretion
- d)Decreased ADH secretion and decreased aldosterone secretion.
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Decreasing the concentration of sodium ions in the blood will result i...
A drop in sodium concentration causes cellular oedema which affects the central nervous system and leads to depression and cerebral oedema [12]. Sodium levels above 145mEq/L results in hypernatremia, a condition that is generally associated with a hyperosmolar state where a fluid volume exists.
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Decreasing the concentration of sodium ions in the blood will result i...
Explanation:
Sodium ions play an important role in the regulation of body fluids and blood pressure. The concentration of sodium ions in the blood is regulated by the hormones ADH (antidiuretic hormone) and aldosterone.
- ADH is produced by the hypothalamus and released by the pituitary gland in response to an increase in the concentration of solutes in the blood or a decrease in blood volume. ADH acts on the kidneys to increase water reabsorption, which leads to a decrease in urine output and an increase in blood volume. This mechanism helps to maintain the concentration of sodium ions in the blood.
- Aldosterone is produced by the adrenal glands and acts on the kidneys to increase sodium reabsorption and potassium excretion. This mechanism helps to maintain the concentration of sodium ions in the blood.
When the concentration of sodium ions in the blood decreases, the following changes occur:
- Decreased ADH secretion: Since the decrease in sodium ions in the blood means there is an excess of water, the body does not need to conserve water. Therefore, there is a decrease in ADH secretion, which leads to an increase in urine output and a decrease in blood volume.
- Increased aldosterone secretion: Aldosterone secretion increases in response to a decrease in sodium ions in the blood. Aldosterone acts on the kidneys to increase sodium reabsorption, which leads to an increase in blood volume and the concentration of sodium ions in the blood.
Therefore, the correct answer is option C: Decreased ADH secretion and increased aldosterone secretion.
Sodium ions play an important role in the regulation of body fluids and blood pressure. The concentration of sodium ions in the blood is regulated by the hormones ADH (antidiuretic hormone) and aldosterone.
- ADH is produced by the hypothalamus and released by the pituitary gland in response to an increase in the concentration of solutes in the blood or a decrease in blood volume. ADH acts on the kidneys to increase water reabsorption, which leads to a decrease in urine output and an increase in blood volume. This mechanism helps to maintain the concentration of sodium ions in the blood.
- Aldosterone is produced by the adrenal glands and acts on the kidneys to increase sodium reabsorption and potassium excretion. This mechanism helps to maintain the concentration of sodium ions in the blood.
When the concentration of sodium ions in the blood decreases, the following changes occur:
- Decreased ADH secretion: Since the decrease in sodium ions in the blood means there is an excess of water, the body does not need to conserve water. Therefore, there is a decrease in ADH secretion, which leads to an increase in urine output and a decrease in blood volume.
- Increased aldosterone secretion: Aldosterone secretion increases in response to a decrease in sodium ions in the blood. Aldosterone acts on the kidneys to increase sodium reabsorption, which leads to an increase in blood volume and the concentration of sodium ions in the blood.
Therefore, the correct answer is option C: Decreased ADH secretion and increased aldosterone secretion.
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Community Answer
Decreasing the concentration of sodium ions in the blood will result i...
Mineralocorticoids(aldosterone) helps in decreasing sodium ions in blood.
in case of ADH it helps in reabsorption of Na ion in PCT, so it increase sodium ions in blood.
c is right
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Decreasing the concentration of sodium ions in the blood will result ina)increased ADH secretion and increased aldosterone secretionb)Increased ADH secretion and decreased aldosterone secretionc)Decreased ADH secretion and increased aldosterone secretiond)Decreased ADH secretion and decreased aldosterone secretion.Correct answer is option 'C'. Can you explain this answer?
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Decreasing the concentration of sodium ions in the blood will result ina)increased ADH secretion and increased aldosterone secretionb)Increased ADH secretion and decreased aldosterone secretionc)Decreased ADH secretion and increased aldosterone secretiond)Decreased ADH secretion and decreased aldosterone secretion.Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Decreasing the concentration of sodium ions in the blood will result ina)increased ADH secretion and increased aldosterone secretionb)Increased ADH secretion and decreased aldosterone secretionc)Decreased ADH secretion and increased aldosterone secretiond)Decreased ADH secretion and decreased aldosterone secretion.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Decreasing the concentration of sodium ions in the blood will result ina)increased ADH secretion and increased aldosterone secretionb)Increased ADH secretion and decreased aldosterone secretionc)Decreased ADH secretion and increased aldosterone secretiond)Decreased ADH secretion and decreased aldosterone secretion.Correct answer is option 'C'. Can you explain this answer?.
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