Urea in humans is synthesized in:

1. Kidneys 2. Renal vein
3. Liver 4. Urinary bladder

Subtopic:  Nitrogenous Excretory Products |
 80%
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The region of human kidney where you expect to find maximum osmolarity is:
1. at the top of the renal cortex
2. at the bottom of the renal cortex
3. at the top of the renal medulla
4. at the bottom of the renal medulla

Subtopic:  Concentration of Urine |
 76%
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Sodium is the principal cation in blood. If the blood concentration of sodium ions gets below normal:
1. blood volume increases and blood pressure decreases
2. water drains from the collecting duct
3. blood volume and blood pressure decrease
4. ADH secretion increases

Subtopic:  Autoregulation of GFR |

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RAAS is opposed by:

1. ADH 2. renin
3. atrial natriuretic peptide 4. angiotensin II
Subtopic:  Autoregulation of GFR |
 76%

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Mammals are:
1. osmoconformers.
2. hypotonic to their environment.
3. hypertonic to their environment.
4. osmoregulators.

Subtopic:  Nitrogenous Excretory Products |
 84%

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The most toxic nitrogenous metabolic waste product is:

1. ammonia 2. urea
3. uric acid 4. methane
Subtopic:  Nitrogenous Excretory Products |
 91%
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Kidneys are not involved in:
1. Osmoregulation
2. Activation of Vitamin D
3. Secreting hormones
4. Glycogenesis

Subtopic:  Human Kidney: Functions |
 59%

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Malpighian body or the renal corpuscle is made up of:
1. Glomerular capillaries and PTCN
2. Bowman's capsule and renal tubules
3. Afferent and efferent arterioles
4. Glomerular capillaries and Bowman's capsule

Subtopic:  Human Kidney: Functions | Human Kidney: Location & Cut Section |
 83%
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Filtration slits in the glomerular membrane are formed by:
1. The capillary endothelial cells
2. The basement membrane
3. The podocyte cells
4. Mesangial cells

Subtopic:  Formation of Urine |
 88%
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The juxtaglomerular apparatus is made up of:
1. Juxtaglomerular cells and podocytes
2. Macula densa and podocytes
3. Juxtaglomerular cells and mesangial cells
4. Juxtaglomerular cells and macula densa

Subtopic:  Formation of Urine |
 69%

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