Structures of the Urinary System: Kidneys Overview

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15 Questions

What is the function of the internal sphincter in the urinary bladder?

It relaxes to allow urine to leave the bladder

Where are the kidneys located in relation to the vertebral column?

On either side of the vertebral column

What is the main function of the ureters?

To carry urine from the kidneys to the urinary bladder

What is the primary component of the urinary bladder?

Fatty tissue

What are the basic urine producing units in each kidney called?

Nephrons

Which part of the urinary system is surrounded by the prostate in males?

Urethra

What is the function of the internal sphincter in the urinary bladder?

To provide involuntary control of urine release from the bladder

Which component of the urinary system is about 10 cm long, 5.5 cm wide, and 3 cm in depth?

Renal cortex

What is the main function of the formation of urine in the urinary system?

Maintain blood volume and remove metabolic wastes

Which condition can cause proteins to be released in the urine?

Glomerulonephritis

What is the main function of urea in the urinary system?

Used in the metabolism of nitrogen-containing compounds

Which disease of the urinary system may occur mostly in pregnant women and present symptoms such as fever, chills, and back pain?

Pyelonephritis

What are nephrons in the urinary system?

The basic urine producing units in each kidney

What is a product of the breakdown of purines in the urinary system?

Uric acid

Which condition in the urinary system causes kidney stones and may be caused by a decrease in urine volume?

Nephrolithiasis (Renal Calculi)

Study Notes

Urinary System Structure and Function

  • The internal sphincter in the urinary bladder regulates the flow of urine from the bladder into the urethra.
  • The kidneys are located in the retroperitoneal space, between the 12th thoracic and 3rd lumbar vertebrae.
  • The main function of the ureters is to transport urine from the kidneys to the urinary bladder.
  • The primary component of the urinary bladder is smooth muscle.
  • The basic urine-producing units in each kidney are called nephrons.
  • In males, the urethra is surrounded by the prostate.
  • The internal sphincter in the urinary bladder is a ring-like muscle that helps to control the flow of urine.
  • The urinary bladder is approximately 10 cm long, 5.5 cm wide, and 3 cm in depth.
  • The main function of the formation of urine in the urinary system is to remove waste and excess substances from the body.
  • Proteins can be released in the urine due to a condition called proteinuria.
  • The main function of urea in the urinary system is to remove excess nitrogen from the body.
  • Pyelonephritis, a disease of the urinary system, may occur mostly in pregnant women and presents symptoms such as fever, chills, and back pain.
  • Nephrons in the urinary system are the functional units responsible for filtering waste and excess substances from the blood.
  • Uric acid is a product of the breakdown of purines in the urinary system.
  • Dehydration, which can cause kidney stones, may be caused by a decrease in urine volume.

This quiz covers the structures of the urinary system, focusing on the location, size, and composition of the kidneys. It discusses the protective surroundings and the internal regions of the kidneys.

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