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Questions and Answers
Which organs are the key components of the urinary system?
Which organs are the key components of the urinary system?
- Heart, brain, spleen, pancreas
- Skin, bones, muscles, blood vessels
- Lungs, stomach, intestines, liver
- Kidneys, ureters, bladder, urethra (correct)
Where are the kidneys located in the body?
Where are the kidneys located in the body?
- In the chest cavity
- In the abdominal cavity (correct)
- In the cranial cavity
- In the pelvic cavity
What is the function of the urinary system?
What is the function of the urinary system?
- Producing hormones
- Digesting food
- Filtering blood and eliminating waste (correct)
- Regulating heart rate
Why is the proper functioning of the urinary system important?
Why is the proper functioning of the urinary system important?
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What is the shape of the kidneys?
What is the shape of the kidneys?
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Which of the following is NOT a function of the urinary system?
Which of the following is NOT a function of the urinary system?
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Where are the kidneys located in the abdominal cavity?
Where are the kidneys located in the abdominal cavity?
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What is the approximate length of the kidneys?
What is the approximate length of the kidneys?
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Which vertebral level is the left kidney located at?
Which vertebral level is the left kidney located at?
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What percentage of cardiac output do the kidneys receive?
What percentage of cardiac output do the kidneys receive?
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Study Notes
Urinary System Components
- The key components of the urinary system are the kidneys, ureters, bladder, urethra, and adrenal glands.
Kidney Location
- The kidneys are located in the abdominal cavity, one on each side of the spine.
- They are situated between the levels of the 12th thoracic vertebra (T12) and the 3rd lumbar vertebra (L3).
- The left kidney is located slightly higher than the right kidney, at the level of the 1st and 2nd lumbar vertebrae (L1 and L2).
Function of the Urinary System
- The urinary system filters waste and excess fluids from the blood and regulates electrolyte levels.
- It also helps to maintain acid-base balance, regulate blood pressure, and produce hormones that help to produce red blood cells.
Importance of the Urinary System
- The proper functioning of the urinary system is crucial for removing waste and excess fluids from the body.
- If the urinary system fails, waste can build up in the body, leading to serious health problems.
Kidney Shape and Size
- The kidneys are bean-shaped organs, each about 4-5 inches (10-13 cm) long.
- They are protected by the ribs and are surrounded by a fatty layer.
Functions NOT Performed by the Urinary System
- The urinary system is NOT responsible for digestion and absorption of nutrients.
Blood Supply to the Kidneys
- The kidneys receive about 20-25% of the cardiac output, making them one of the most highly perfused organs in the body.
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