Podcast
Questions and Answers
During cellular respiration, which waste products are primarily expelled from the body via the lungs?
During cellular respiration, which waste products are primarily expelled from the body via the lungs?
- Carbon dioxide and water vapor (correct)
- Urea and excess water
- Salts/ions and urea
- Salts/ions and excess water
Which of the following best describes the primary function of the kidneys in the excretory system?
Which of the following best describes the primary function of the kidneys in the excretory system?
- To regulate body temperature through perspiration
- To remove water and salts through sweat
- To excrete carbon dioxide and water vapor
- To filter waste from the blood and produce urine (correct)
If a patient's kidneys are failing, which substance would likely accumulate to toxic levels in the blood?
If a patient's kidneys are failing, which substance would likely accumulate to toxic levels in the blood?
- Urea (correct)
- Carbon dioxide
- Water vapor
- Sodium chloride
The process of sweating assists in thermoregulation and excretion. Which of the following is primarily excreted through sweat?
The process of sweating assists in thermoregulation and excretion. Which of the following is primarily excreted through sweat?
Which of these scenarios would most likely cause the kidneys to produce a larger volume of urine?
Which of these scenarios would most likely cause the kidneys to produce a larger volume of urine?
During intense physical activity, an individual might notice increased sweating. What is the primary reason for this physiological response?
During intense physical activity, an individual might notice increased sweating. What is the primary reason for this physiological response?
How do the lungs contribute to maintaining the body's pH balance?
How do the lungs contribute to maintaining the body's pH balance?
If a person has a respiratory illness that impairs lung function, what immediate effect would this have on their excretory processes?
If a person has a respiratory illness that impairs lung function, what immediate effect would this have on their excretory processes?
Which of the following accurately represents the division of labor among the lungs, kidneys, and skin in terms of waste excretion?
Which of the following accurately represents the division of labor among the lungs, kidneys, and skin in terms of waste excretion?
Which of the following best explains how the excretory system maintains homeostasis during dehydration?
Which of the following best explains how the excretory system maintains homeostasis during dehydration?
Flashcards
Lungs
Lungs
Organs that remove carbon dioxide (COâ‚‚) and water vapor (Hâ‚‚O) from the body during exhalation.
Kidneys
Kidneys
Organs that filter waste from the blood and produce urine, removing urea, excess water, and salts/ions.
Skin
Skin
Organ that removes waste through sweat (perspiration), containing water, salts/ions, and small amounts of urea.
Urea
Urea
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Water Balance
Water Balance
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Salts/Ions
Salts/Ions
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Lung Excretion
Lung Excretion
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Cellular Respiration
Cellular Respiration
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Perspiration
Perspiration
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Thermoregulation
Thermoregulation
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Study Notes
- Excretory organs include the lungs, kidneys, and skin.
Lungs
- Lungs remove carbon dioxide and water vapor during exhalation.
- These are waste products of cellular respiration.
- Cellular respiration occurs when cells use oxygen to release energy from food.
Kidneys
- Kidneys filter waste from the blood and produce urine.
- Primary excretory products include urea, excess water, and salts/ions.
- Urea is a byproduct of protein breakdown.
- Excess water is removed to maintain the body’s water balance.
- Salts/ions are controlled to balance the minerals in the body.
Skin
- Skin removes waste through sweat (perspiration).
- Sweat consists of water, salts/ions (like sodium and chloride), and small amounts of urea.
- Kidneys primarily remove Urea
- Sweating contributes to thermoregulation by cooling down the body.
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