What acts as a check on the renin-angiotensin mechanism?
1. | ANF | 2. | ADH |
3. | Aldosterone | 4. | Erythropoietin |
Consider the two statements:
I: | The process of filtration at Malpighian body is regarded as ultrafiltration. |
II: | Blood is filtered so finely that all constituents of plasma pass into the lumen of Bowman’s capsule. |
1. | Both I and II are correct and II explains I |
2. | Both I and II are correct but II does not explain I |
3. | I is correct but II is incorrect |
4. | I is incorrect but II is correct |
Extension of renal cortex between the medullary pyramids is called as:
1. Juxta-glomerular apparatus | 2. Macula densa |
3. Columns of Bertini | 4. Ducts of Bellini |
Conditional absorption of water takes place mainly in:
1. PCT | 2. Loop of Henle |
3. DCT | 4. Collecting duct |
JGA is a special sensitive region formed by cellular modifications in the:
1. | DCT and the afferent arteriole at the location of their contact |
2. | DCT and the efferent arteriole at the location of their contact |
3. | PCT and the afferent arteriole at the location of their contact |
4. | PCT and the efferent arteriole at the location of their contact |
Protonephridia are the excretory structures in all the following except:
1. Planaria | 2. Rotifers |
3. Amphioxus | 4. Prawns |
Beginning from the collecting duct, arrange the following structures in the correct sequence in which urine passes to the external environment: (A) ureter, (B) renal pelvis, (C) calyx, (D) urinary bladder, (E) urethra.
1. A, B, C, D, E | 2. C, D, A, E, B |
3. C, B, A, D, E | 4. B, D, A, C, E |
A counter current mechanism for concentration of urine exists between:
1. | Ascending limb of vasa recta and ascending limb of loop of Henle |
2. | Descending limb of vasa recta and descending limb of loop of Henle |
3. | Collecting duct and ascending limb of loop of Henle |
4. | Collecting duct and descending limb of loop of Henle |
A capillary network around the renal tubule is formed by:
1. Afferent arteriole | 2. Efferent arteriole |
3. Vasa recta | 4. Arcuate artery |
Removal rate of carbon dioxide by lungs is approximately:
1. | 125 ml/minute | 2. | 200 ml/minute |
3. | 280 ml/minute | 4. | 325 ml/minute |