Excretory System: Question Preview (ID: 16781)

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The excretory system is also called the?
a) Urinary system
b) Waste Removal System
c) It has no other name
d) The septic system

Blood enters the kidneys via the?
a) Renal Artery
b) Renal Vein
c) Ureter
d) Urethra

How many kidneys do humans have?
a) Two
b) Only one, its split into two hemispheres
c) Four
d) It depends, anywhere from 1 - 4 kidneys

The kidney's role's in the excretory system is to?
a) Help remove wastes, balance blood pH and maintain water balance
b) Deliver urine directly to the bladder
c) Add water to the urine to dilute it
d) Maintain the proper water balance

Where are your kidneys located?
a) One on each side of the vertebral column
b) Underneath the lungs
c) On either side of the bladder
d) Inside the vertebral column

What structure is at the beginning of the nephron?
a) The Bowman's Capsule
b) The Proximal Convoluted Tubule
c) The Distal Convoluted Tubule
d) The Collecting Duct

How many nephrons are in the human body?
a) Approximate 1 000 nephrons per kidney
b) Two nephrons, one for each kidney
c) About 500 nephrons per kidneys
d) About 100 000 nephrons per kidneys

What is the average size of the human's kidneys?
a) About 3 inches wide and 5 inches long
b) About the size of a real live mouse
c) About the size of a kidney bean
d) About 2 inches wide and 6 inches long

What are the main parts of the excretory system?
a) The ureter, urethra, bladder and kidneys
b) The ureter, urethra and stomach
c) The bladder is the only component of the excretory system
d) The kidneys and nephrons

The excretory system helps maintain homeostasis by?
a) Expelling excess water and wastes
b) Expelling excess water only
c) Removing solid wastes
d) It does not help maintain homeostasis

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