10 Questions
What is the excretory system of humans also known as?
The urinary system.
What are the components of the urinary system?
One pair of kidneys, a pair of ureters, a urinary bladder, and a urethra.
What is the function of the kidneys?
To filter blood and produce urine.
Where are the kidneys located in the body?
Against the back wall of the abdominal cavity, just below the diaphragm, one on either side of the vertebral column.
How are the kidneys protected?
By the last 2 ribs.
What are the dimensions of each kidney?
10 cm long, 5 cm wide, 4 cm thick
Where is the hilus located in the kidney?
near the centre of the concave area
What is the function of the urethra?
to carry urine from the urinary bladder to the outside of the body
How much does each kidney weigh?
about 120 grams
Where are the kidneys placed in the abdominal cavity?
against the back wall, below the diaphragm
Study Notes
The Excretory System (Urinary System)
- Consists of one pair of kidneys, a pair of ureters, a urinary bladder, and a urethra.
Kidneys
- Filter blood to produce urine.
- Dark-red, bean-shaped organs.
- Each kidney measures 10 cm long, 5 cm wide, and 4 cm thick.
- Weighs about 120 grams.
- Located against the back wall of the abdominal cavity, just below the diaphragm.
- One kidney is on either side of the vertebral column.
- Protected by the last two ribs.
- The left kidney is slightly higher than the right.
- The concave side of the kidney faces the vertebral column.
- Has a depression called the hilus, near the center of the concave area.
- The hilus is the area where the ureter leaves the kidney and other structures, including blood vessels and lymphatic vessels, enter.
Test your knowledge of the excretory system with this quiz! Learn about the functions and components of the urinary system, including the kidneys, ureters, bladder, and urethra. Challenge yourself with questions on urine production, storage, and elimination.
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