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Multiple Choice
What are the two forces that oppose blood pressure within the glomerulus?
A
Capsular hydrostatic pressure and blood colloid osmotic pressure
B
Capsular hydrostatic pressure and tubular reabsorption
C
Blood colloid osmotic pressure and tubular secretion
D
Tubular reabsorption and tubular secretion
Verified step by step guidance
1
Understand that the glomerulus is a network of capillaries in the kidney where blood filtration begins.
Recognize that blood pressure within the glomerulus is the driving force for filtration, pushing fluid out of the capillaries into the Bowman's capsule.
Identify that two main forces oppose this blood pressure: capsular hydrostatic pressure and blood colloid osmotic pressure.
Capsular hydrostatic pressure is the pressure exerted by the fluid already in the Bowman's capsule, which resists further fluid entry.
Blood colloid osmotic pressure is the osmotic pressure due to proteins in the blood plasma, which draws water back into the capillaries, opposing filtration.