An increase in the blood flow to the atria of the heart can cause the release of:
1. Erythropoeitin
2. Atrial natriuretic factor
3. Renin
4. Aldosterone
Juxtaglomerular apparatus is a special sensitive region formed by cellular modifications in the:
1. DCT and Efferent arteriole at the point of their contact
2. DCT and the Afferent arteriole at the point of their contact
3. PCT and Afferent arteriole at the point of their contact
4. PCT and Efferent arteriole at the point of their contact
Regarding the control of water balance by the kidneys:
| 1. | The renal medulla has an osmotic gradient that decreases from the border with the cortex to the renal papilla. |
| 2. | ADH is secreted by anterior pituitary in response to a decrease in the osmolality of the blood. |
| 3. | A normal person cannot produce urine with an osmolality greater than 300 mOsmil.kg-1. |
| 4. | ADH acts on the cells of the collecting ducts to increase their permeability to water. |
Atrial natriuretic hormone (ANH) will promote a(n) ________ in the excretion of sodium and water; thus ________ blood volume and blood pressure.
1. decrease, decreasing
2. decrease; increasing
3. increase, decreasing
4. increase, increasing
Which of the following does not favor the formation of large quantities of dilute urine?
1. Alcohol
2. Caffeine
3. Renin
4. Atrial-natriuretic factor
Which of the following causes an increase in sodium reabsorption in distal convoluted
tubule?
1. Increase in aldosterone levels
2. Increase in antidiuretic hormone levels
3. Decrease in aldosterone levels
4. Decrease in antidiuretic hormone levels
Which one of the following statements is correct with respect to kidney function
regulation?
1. Exposure to cold temperatures stimulates ADH release
2. An increase in glomerular blood flow stimulates the formation of angiotensin II
3. During summer when the body loses a lot of water by evaporation, the release of ADH is
suppressed
4. When someone drinks a lot of water ADH release is suppressed
A person who is on a long hunger strike and is surviving only on water, will have:
1. More sodium in his urine
2. Less amino acids in his urine
3. More glucose in his blood
4. Less urea in his urine
Angiotensinogen is a protein produced and secreted by:
1. Macula densa cells
2. Endothelial cells (cells lining the blood vessels)
3. Liver cells
4. Juxtaglomerular (JG) cells
In the presence of vasopressin, the greatest fraction of filtered water is absorbed in
1. Loop of Henle
2. Proximal convoluted tubule
3. distal convoluted tubule
4. collecting tubule
© 2024 GoodEd Technologies Pvt. Ltd.