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Excretory System
Test Description: Excretory system review
Instructions: Answer all questions to get your test result.
1) The excretory system helps maintain homeostasis by?
A
Expelling excess water only
B
It does not help maintain homeostasis
C
Removing solid wastes
D
Expelling excess water and wastes
2) What are the main parts of the excretory system?
A
The ureter, urethra and stomach
B
The bladder is the only component of the excretory system
C
The ureter, urethra, bladder and kidneys
D
The kidneys and nephrons
3) What is the average size of the human's kidneys?
A
About 2 inches wide and 6 inches long
B
About the size of a kidney bean
C
About the size of a real live mouse
D
About 3 inches wide and 5 inches long
4) How many nephrons are in the human body?
A
Two nephrons, one for each kidney
B
About 100 000 nephrons per kidneys
C
About 500 nephrons per kidneys
D
Approximate 1 000 nephrons per kidney
5) What structure is at the beginning of the nephron?
A
The Distal Convoluted Tubule
B
The Collecting Duct
C
The Proximal Convoluted Tubule
D
The Bowman's Capsule
6) Where are your kidneys located?
A
On either side of the bladder
B
Underneath the lungs
C
Inside the vertebral column
D
One on each side of the vertebral column
7) The kidney's role's in the excretory system is to?
A
Help remove wastes, balance blood pH and maintain water balance
B
Maintain the proper water balance
C
Add water to the urine to dilute it
D
Deliver urine directly to the bladder
8) How many kidneys do humans have?
A
Two
B
Four
C
Only one, its split into two hemispheres
D
It depends, anywhere from 1 - 4 kidneys
9) Blood enters the kidneys via the?
A
Ureter
B
Renal Vein
C
Renal Artery
D
Urethra
10) The excretory system is also called the?
A
Waste Removal System
B
Urinary system
C
It has no other name
D
The septic system
*select an answer for all questions
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