Q. No.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 |
Identify the incorrectly matched pair [assume normal physiological conditions]:
| 1. | GFR – 125 ml/min |
| 2. | Amount of urea produced – 25 to 30 mg/day |
| 3. | Average urine output – 1 to 1.5 liter/day |
| 4. | Average amount of blood filtered by kidney – 1100 to 1200 ml/min |
The proximal convoluted tubule of the nephron is lined by:
1. simple ciliated cuboidal epithelium
2. simple ciliated columnar epithelium
3. compound cuboidal brush bordered epithelium
4. simple cuboidal brush bordered epithelium
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