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Body Fluids Importance Course Quiz

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Questions and Answers

What is the primary function of the urinary system?

Maintenance of fluid volume (correct)

Regulation of electrolyte balance

Production of red blood cells

Regulation of Vitamin D

Which hormone is released by the pituitary gland to regulate water reabsorption?

Erythropoietin

Aldosterone

Renin

ADH (antidiuretic hormone) (correct)

Which circumstance can lead to the release of Renin from juxtaglomerular cells of the kidney?

Increase in blood pressure

Decrease in sympathetic stimuli

Sense of decrease in sodium levels (correct)

Decrease in chloride levels

What stimulates the production of RBC in the bone marrow?

Erythropoietin Signup and view all the answers

What is the main function of the Renin-angiotensin system in controlling the urinary system?

Controls ADH and aldosterone Signup and view all the answers

What is the primary function of the regulation of 'Acid-Base' balance by the urinary system?

Maintenance of pH balance Signup and view all the answers

What is the basic function of nephrons?

To clear out the blood plasma from unwanted substances Signup and view all the answers

Which hormone causes the kidney to conserve sodium and excrete potassium?

Aldosterone Signup and view all the answers

What is the principle mechanism of urine formation?

Ultrafiltration, selective reabsorption, and secretion Signup and view all the answers

What does glomerular filtrate contain?

Glucose, urea, amino acids, and plasma proteins Signup and view all the answers

What is responsible for moving substances through the glomerular capillary wall by filtration?

Hydrostatic pressure of the blood Signup and view all the answers

What is the effect of aldosterone on urine volume?

Decreases urine volume and makes it concentrated Signup and view all the answers

Which factor affects the glomerular filtration rate (GFR) by increasing it when blood pressure rises?

Change in renal blood flow Signup and view all the answers

What is included in the substances present in glomerular filtrate?

$Glucose$, $urea$, $amino acids$, $calcium ions$, $sodium ions$, $bicarbonate ions$, $potassium ions$, protons, and a large amount of water Signup and view all the answers

What does ultrafiltration mean in the context of urine formation?

$H_2O$ filtration through glomerular capillary wall to Bowman’s capsule Signup and view all the answers

What is the main force responsible for moving substances through the glomerular capillary wall by filtration?

Hydrostatic pressure of the blood inside the glomerular capillary Signup and view all the answers