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 most toxic nitrogenous metabolic waste product is:

1. ammonia 2. urea
3. uric acid 4. methane
Subtopic:  Nitrogenous Excretory Products |
 92%
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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 |
 84%
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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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All the following are secreted by the tubules of nephrons except:

1. Sodium ions 2. Potassium ions
3. Uric acid 4. Hydrogen ions
Subtopic:  Formation of Urine |
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A hormone formed in the blood that causes vasoconstriction is:

1. Renin 2. Aldosterone
3. Angiotensin 4. Vasopressin
Subtopic:  Autoregulation of GFR |
 51%
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In the male, urethra serves to:
1. transport urine from kidney to bladder
2. transport sperms to ejaculatory ducts
3. store urine and sperms
4. discharge semen and urine

Subtopic:  Human Kidney: Location & Cut Section |
 74%

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The functional unit of the human kidney is the:

1. glomerulus 2. Malpighian body
3. nephron 4. medullary pyramids
Subtopic:  Human Kidney: Location & Cut Section |
 93%
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The vascular endothelium of glomerular capillaries, basement membrane, and podocytes in the inner lining of Bowman’s capsule form:

1. filtration membrane 2. juxtaglomerular apparatus
3. Malpighian corpuscle 4. nephron

Subtopic:  Formation of Urine |
 74%
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A series of straight capillaries in the medulla that lie parallel to the loop of Henle are called:

1. arcuate arteries 2. efferent arterioles
3. afferent arterioles 4. vasa recta
Subtopic:  Human Kidney: Location & Cut Section | Nephron Part 1 | Nephron Part 2 |
 90%
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