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Questions and Answers
Questions and Answers
What is the function of the glomerulus in the nephron?
What is the function of the glomerulus in the nephron?
- Returns needed substances to the blood
- Filters blood (correct)
- Removes excess acid from the blood
- Reabsorbs water
What is the approximate weight of each adult kidney?
What is the approximate weight of each adult kidney?
- 120-170 gm (correct)
- 90-110 gm
- 200-250 gm
- 50-80 gm
How many nephrons are present in each kidney?
How many nephrons are present in each kidney?
- 500,000
- Two million
- Three million
- One million (correct)
What happens to larger molecules like proteins and blood cells in the nephron?
What happens to larger molecules like proteins and blood cells in the nephron?
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What is the role of the tubule in the nephron?
What is the role of the tubule in the nephron?
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Questions and Answers
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Study Notes
Study Notes
The Glomerulus and Nephron Structure
- The glomerulus is a cluster of capillaries that filters the blood to remove waste and excess substances, located at the beginning of the nephron.
Kidney Structure and Function
- The approximate weight of each adult kidney is 125-170 grams.
- Each kidney contains approximately 1 million nephrons.
Glomerular Filtration
- Larger molecules like proteins and blood cells are too large to pass through the glomerulus and are retained in the bloodstream, while smaller molecules like water, ions, and urea pass through to form the filtrate.
Tubule Function
- The tubule is a narrow tube that receives the filtrate from the glomerulus and modifies it through reabsorption and secretion to form the final urine.
- The tubule plays a crucial role in regulating electrolyte levels, pH, and water balance in the body.
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