10 Questions
What is the main function of the kidneys in regulating urine concentration and volume?
Increasing water reabsorption from the filtrate
Which hormonal mechanism is more sensitive to changes in blood pressure?
Renin-angiotensin-aldosterone (RAA) mechanism
Under what condition is the Renin-angiotensin-aldosterone (RAA) mechanism initiated?
Low blood pressure conditions
What is responsible for the secretion of H+ into the urine and can directly regulate the pH of the body fluids?
Distal convoluted tubule
In acidosis, what occurs when the pH of the blood falls below 7.35?
CNS malfunctions leading to disorientation
What causes blood pH to rise toward its normal value?
Decreased rate of H+ secretion and increased rate of HCO3- reabsorption
What is the main function of the kidneys in regulating blood volume and pressure?
Regulate the volume of urine produced
What structure protects the kidneys from mechanical shock?
Adipose Tissue
Where is the hilum located in each kidney?
On the medial side
What is the main role of the renal sinus in the kidneys?
Contains blood vessels and part of the system that collects urine and adipose tissue
Test your knowledge about the regulation of urine concentration and volume in the urinary system. Understand the movement of nonfiltered substances from the blood into the filtrate and the kidneys' role in maintaining the concentration of body fluids.
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