29 Questions
Which part of the kidney nephron is responsible for the filtration of the blood?
Glomerulus
What is the main function of the internal urethral sphincter in the male urinary system?
To control the release of urine
Which hormone is released by the kidney to stimulate new red blood cell (RBC) production?
Erythropoietin
What is the role of the urinary system in preventing a build-up of certain materials in the body?
Secretion of excess materials
In which part of the urinary system does reabsorption of vital nutrients, ions, and water primarily occur?
Kidney nephron
What is the main function of Vitamin D3 in assisting homeostasis?
Increasing calcium absorption from the digestive tract
Which substance stimulates the formation of Angiotensin II to assist homeostasis?
Renin
What is the main function of Angiotensin II in the context of the urinary system?
Causing vasoconstriction to increase blood pressure
Which part of the kidney is primarily responsible for the secretion of H (+1) and reabsorption of HCO3 (-1) to control acid/base conditions?
Cortex
Where does the process of reabsorption occur in the kidney?
Proximal Convoluted Tubule (PCT)
What is the function of the Afferent Arteriole in the nephron?
Transports arterial blood to the glomerulus for filtration
What is the main function of the Efferent Arteriole in the nephron?
Transports filtered blood to the kidney venous system
What is the primary function of Bowman’s Capsule in the nephron?
Encloses the glomerulus and transfers filtrate toward PCT
What are the main functions of the urinary system?
Filtration of the blood, reabsorption of vital nutrients/ions/water, secretion of excess materials, and hormonal functions (activation of Vitamin D and release of Erythropoietin)
How does Vitamin D3 assist homeostasis in the context of the urinary system?
By increasing calcium absorption from the digestive tract.
What is the role of Erythropoietin released by the kidney?
To stimulate new red blood cell (RBC) production.
Where does the activation of Vitamin D primarily occur in the urinary system?
In the kidney, through alpha 1 hydroxylase activity.
What are the functions of the internal urethral sphincter in the male urinary system?
To control the release of urine from the bladder.
In which part of the kidney nephron does the reabsorption of vital nutrients, ions, and water primarily occur?
In most parts of the kidney nephron.
What is the role of Renin in the urinary system?
Stimulate the formation of Angiotensin II to cause vasoconstriction and increase blood pressure
How do Prostaglandins contribute to homeostasis in the urinary system?
By dilating renal cortical blood vessels and constricting blood vessels in the renal medulla
What is the function of the juxtamedullary nephrons in the urinary system?
To help regulate water balance and the concentration of urine
What is the primary role of the secretion of H (+1) and reabsorption of HCO3 (-1) in the urinary system?
To control acid/base conditions in body fluids
What is the function of the Afferent Arteriole in the nephron?
Transport arterial blood to the glomerulus for filtration
What is the primary function of the Glomerulus in the urinary system?
To serve as the site for blood filtration
What is the function of the Proximal Convoluted Tubule (PCT) in the nephron?
Actively reabsorb useful materials and operate as a nonspecific filter
What is the function of the Efferent Arteriole in the nephron?
Transport filtered blood from the glomerulus and to the kidney venous system
What is the role of Vasa Recta in the urinary system?
Transport blood from the glomerulus to the kidney venous system
What is the function of the Bowman’s Capsule in the nephron?
To enclose the glomerulus and transfer filtrate toward the Proximal Convoluted Tubule (PCT)
Test your knowledge about the urinary system, including the renal vein, renal artery, kidney, ureter, urinary bladder, sphincters, and the functions of the urinary system such as filtration of blood and reabsorption of vital nutrients and ions.
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