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Excretory System Quiz
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Excretory System Quiz

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Questions and Answers

What is the bladder?

A muscular sac that holds urine until the urine is excreted.

What is the function of the urethra?

Urine leaves the bladder through this.

What does the ureter do?

Urine leaves each kidney through the ureter.

What is the kidney?

<p>The bean-shaped organ that filters waste from blood.</p> Signup and view all the answers

What is the excretory system?

<p>Collects and eliminates wastes from the body and regulates the level of fluid in the body.</p> Signup and view all the answers

What is a nephron?

<p>Networks of capillaries and small tubes where filtration of blood occurs.</p> Signup and view all the answers

What is urine?

<p>A fluid.</p> Signup and view all the answers

What are the functions of the excretory system?

<p>Collection and elimination, regulation of liquids.</p> Signup and view all the answers

How many kidneys do you have?

<p>2</p> Signup and view all the answers

A major function of the kidneys is to filter ________, removing the waste and returning clean blood back to the body.

<p>water</p> Signup and view all the answers

Each kidney contains about one million ________.

<p>nephrons</p> Signup and view all the answers

What expands and contracts like a balloon when filled or emptied?

<p>Bladder</p> Signup and view all the answers

How do the ureters, bladder, and urethra work together to excrete urine?

<p>Urine leaves each kidney through the ureter. The bladder holds the urine until it is excreted. Then the urine leaves the bladder through the urethra.</p> Signup and view all the answers

How does the excretory system participate in homeostasis of the body?

<p>The excretory system removes waste from the digestive system.</p> Signup and view all the answers

Study Notes

Excretory System Overview

  • The excretory system is responsible for collecting and eliminating waste from the body.
  • It also regulates the fluid level within the body.

Key Structures of the Excretory System

  • Kidneys: Bean-shaped organs that filter waste from the blood, maintaining homeostasis.
  • Nephrons: Each kidney contains approximately one million nephrons, which consist of networks of capillaries and tubules where blood filtration takes place.
  • Bladder: A muscular sac that stores urine until it is expelled from the body; expands and contracts like a balloon.
  • Ureters: Tubes that transport urine from each kidney to the bladder.
  • Urethra: A duct through which urine is excreted from the bladder to the outside of the body.

Urine Production and Excretion

  • Urine: The fluid waste product produced by the kidneys after filtering blood.
  • Urine leaves the kidneys via the ureters, is stored in the bladder, and is expelled through the urethra.

Functions of the Excretory System

  • Primary functions include the collection and elimination of waste and the regulation of liquid balance within the body.
  • A crucial function of the kidneys is filtering water to remove waste while returning clean blood to circulation.

Homeostasis and Waste Removal

  • The excretory system plays a vital role in homeostasis by eliminating waste from the body, contributing to overall health and balance.

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Description

Test your knowledge on the key components of the excretory system. This quiz covers terms like bladder, urethra, ureter, and kidney, providing definitions to enhance your understanding. Perfect for biology students looking to solidify their grasp of human anatomy.

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