__________is a condition in which there is an absence of oxygen supply to an organ's tissues?
Correct answer: A. Anoxia
- A. Anoxia
- B. Anorexia
- C. Hypoxia
- D. Enuresis
Explanation
Anoxia means complete absence, or near-complete absence, of oxygen supply to tissues, whereas hypoxia means reduced oxygen supply. Anorexia is loss of appetite and enuresis is involuntary urination, so students may choose hypoxia when they remember oxygen deficiency but overlook the word “absence.”
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About Human Respiratory System
The human respiratory system conducts air to the alveoli, where oxygen and carbon dioxide exchange occurs across thin respiratory surfaces. Questions cover the nasal passage, trachea, bronchi, lungs, diaphragm and intercostal muscles, ventilation mechanics and gas transport, while distinguishing breathing and gaseous exchange from cellular respiration.
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