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Human Excretory System Quiz

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Questions and Answers

What are the three main parts of the kidney?

Pelvis, bladder, and vena cava

Medulla, renal capillaries, and urethra

Cortex, renal artery, and ureter

Cortex, medulla, and pelvis (correct)

What is the main function of the urethra in the human excretory system?

To transport urine outside the body (correct)

To filter blood

To store urine

To produce urine

Which blood vessel is mentioned as part of the human excretory system?

Subclavian artery

Pulmonary vein

Inferior vena cava (correct)

Aorta

What sequence describes the path of urine from the kidneys to the outside of the body?

<p>Kidneys → Bladder → Urethra</p> Signup and view all the answers

Which of the following statements is true regarding the kidney structure?

<p>The renal pelvis collects urine before it moves to the ureter.</p> Signup and view all the answers

Study Notes

Kidney Types

Mesonephric kidneys are functional in some lower vertebrates.
Metanephric kidneys are the fully developed kidneys found in mammals, including humans.

Human Excretory System

The human excretory system is essential for waste removal and regulation of body fluids.
It comprises major components: kidneys, ureters, bladder, and urethra.

Kidney Structure

The human kidney has three main parts:
- Cortex: the outer layer, involved in filtration.
- Medulla: the inner layer, contains structures for urine collection and concentration.
- Pelvis: the funnel-shaped cavity that collects urine before it moves to the ureters.

Urine Pathway

Urine is produced in the kidneys, then travels through the ureters to the bladder for storage.
The urine exits the body via the urethra during urination.

Circulatory Connection

The inferior vena cava plays a crucial role by transporting deoxygenated blood from the lower body back to the heart.

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Description

Test your knowledge of the human excretory system, including its structure and function. This quiz covers topics such as the kidneys, ureters, bladder, and the anatomy of the kidney, including the cortex and medulla. Understand how urine is formed and the path it takes through the body.