Tag: regulation of urine formation
Questions Related to regulation of urine formation
Endocrine structure of kidney is
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Cortex
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Medulla
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Juxtaglomerular apparatus
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Pelvis
The juxtaglomerular apparatus is a type of endocrine organ that is small in size, located within kidneys and helps in the regulating the function of nephrons. This is mainly involved in the secretion of renin and erythropoietin in response to changes in the renal blood pressure or blood flow.
Vasopressin is related with the concentration of urine.
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True
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False
Which one of the following statements is correct with respect to kidney function regulation ?
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When someone drinks lot of water, ADH release is suppressed
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Exposure to cold temperature stimulates ADH release
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An increase in glomerular blood flow stimulates formation of angiotensin II
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During summer when body loses lot of water by evaporation the release of ADH is suppressed
When someone drinks lot of water which is excess amount for his body, as a result osmolarity of the blood will decreases.The decrease in osmolarity will suppress the release of ADH. Correct option is (A).
Reabsorption of water in the nephron is controlled by ADH and aldosterone hormone.
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True
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False
Hormone which adsorbs water from renal tubule
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Insulin
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Glucangon
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ADH
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None of these
Vasopressin, also known as antidiuretic Hormone (ADH) is a hormone synthesized in the hypothalamus and stored in the posterior pituitary glands. It absorbs water from renal tubule thereby conserving water in our body. It constantly regulates and balances the water level of the body. Osmotic sensors and baroreceptors join with ADH in water metabolism.
ADH helps in water elimination, making the urine hypotonic.
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True
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False
Urine of a human being suffering from diabetes insipidus is
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Tasteless and thick
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Sweet and thick
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Tasteless and watery
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Sweet and watery
- Diabetes insipidus is a rare disorder that occurs when a person's kidneys pass an abnormally large volume of urine that is insipid dilute and odourless.
- People with diabetes insipidus have normal blood glucose levels; however, their kidneys cannot balance fluid in the body.
- Hence, the Urine of a human being suffering from diabetes insipidus is Tasteless and watery.
- So, the correct answer is 'Tasteless and watery'.
Even in presence of hormone ADH, maximum water is reabsorbed in?
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Proximal convoluted tubule
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Distal convoluted tubule
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Both DCT and collecting tubule
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Loop pf Henle
Over 180 liters of urine is produced in the human body every day. Out of this, only 1.5 liters is actually excreted. This means that 99% of the urine produced is reabsorbed in the body. Various solutes are absorbed in different parts of the renal tubule. Maximum water absorption takes place in the proximal convoluted tubule.
Which of the following is involved in reabsorption of water in kidney?
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ADH
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PRL
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LH
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None of these
Antidiuretic hormone or ADH ( also known as vasopressin ) is involved in reabsorption of water in kidney. Antidiuretic hormone binds to receptors on cells in the collecting ducts of the kidney and promotes reabsorption of water back into the circulation. In the absense of antidiuretic hormone, the collecting ducts are virtually impermiable to water, and it flows out as urine.
Which of the following is a powerful vasconstrictor that increases the glomerular blood pressure and there the GFR?
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Renin
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Angiotensin-II
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Aidosterone
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ANF