What is the function(s) of the nephron? (Select all that apply).
Reabsorption
Filtration
Storage
Increase RBC production
Secretion
Correct Answer : A,B,E
A. Reabsorption: The nephron reabsorbs water, glucose, and electrolytes from the filtrate back into the blood.
B. Filtration: The glomerulus filters blood, initiating urine formation by removing waste, water, and solutes.
C. Storage: Urine storage occurs in the bladder, not the nephron.
D. Increase RBC production: While the kidneys release erythropoietin, which stimulates RBC production, this is not a nephron-specific function.
E. Secretion: The nephron actively secretes waste products like hydrogen ions and drugs into the tubule for excretion.
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Related Questions
Correct Answer is B
Explanation
A. Pressure within the renal tubules: This is tubular pressure, which opposes filtration and is not the driving force.
B. Blood pressure: Blood pressure within the glomerular capillaries provides the main hydrostatic pressure driving glomerular filtration.
C. Intrathoracic pressure: This affects respiration and venous return, not glomerular filtration.
D. Intraabdominal pressure: Elevated intraabdominal pressure can impair renal perfusion, but it does not drive filtration.
Correct Answer is D
Explanation
A. Avoid gas-producing foods: While this may reduce bloating or discomfort, it does not address constipation directly.
B. Request that the provider prescribe a stool softener: This may help symptomatically, but it's not the first-line intervention.
C. Promote active range-of-motion activities: Exercise helps bowel movement, but fluid and fiber intake is more essential initially.
D. Add fluid and fiber to the diet: Increased fiber adds bulk to the stool, and fluids soften it, both of which promote bowel movement and relieve constipation.
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