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Flight Physiology and Altitude Effects Flashcards
| Front | Back |
| At what altitude do most people begin to experience mild hypoxia symptoms | Around 10,000 feet. |
| At what altitude do pressurization loss emergencies typically require immediate oxygen | Above 14,000 feet. |
| How can rapid decompression affect the human body | Causes gas expansion, ear pain, and potential lung damage. |
| How does altitude affect decision-making | Higher altitudes impair cognitive function due to reduced oxygen levels. |
| How does TUC change with increasing altitude | TUC decreases significantly as altitude increases. |
| What causes decompression sickness at high altitudes | Nitrogen gas coming out of solution in your blood and tissues. |
| What does the acronym TUC stand for in altitude physiology | Time of Useful Consciousness. |
| What does the term "altitude sickness" refer to | Adverse effects like headache, nausea, and dizziness due to rapid ascent to high altitudes. |
| What is Boyle's Law and its relevance to flight physiology | Gas volume is inversely proportional to pressure; explains gas expansion at altitude. |
| What is hyperventilation | Breathing faster than normal, leading to decreased carbon dioxide levels. |
| What is hypoxia | A condition where the body or a region of the body is deprived of adequate oxygen supply. |
| What is one common symptom of mild hypoxia | Impaired judgment or euphoria. |
| What is the average TUC at 25 | 000 feet without supplemental oxygen, 3 to 5 minutes. |
| What is the function of pressurization systems in aircraft | Maintain cabin pressure to reduce altitude-related physiological effects. |
| What is the most common ear issue related to altitude changes | Barotrauma or "ear block." |
| What is the oxygen saturation level at sea level under normal conditions | Approximately 98-100%. |
| What is the primary cause of hypoxic hypoxia at altitude | Reduced partial pressure of oxygen in the atmosphere. |
| What is the primary risk during rapid descent without pressure adjustment | Barotrauma or gas expansion in body cavities. |
| What is the primary treatment for hyperventilation during flight | Breathing into a paper bag or slowing breathing rate. |
| What is the safer method to prevent hypoxia during flight | Supplemental oxygen use. |
| What is the standard atmospheric pressure at sea level | 760 mmHg. |
| What mechanism prevents lung overexpansion in ascent | Controlled exhalation or coughing to equalize pressure. |
| What physiological change helps acclimatization to high altitude over time | Increased red blood cell production. |
| Which flight condition is associated with "The Bends | " Rapid decompression or ascent causing nitrogen bubble formation in tissues. |
Front
What is hypoxia
Click the card to flip
Back
A condition where the body or a region of the body is deprived of adequate oxygen supply.
Front
What does the acronym TUC stand for in altitude physiology
Back
Time of Useful Consciousness.
Front
What is the standard atmospheric pressure at sea level
Back
760 mmHg.
Front
How does altitude affect decision-making
Back
Higher altitudes impair cognitive function due to reduced oxygen levels.
Front
How can rapid decompression affect the human body
Back
Causes gas expansion, ear pain, and potential lung damage.
Front
What is the function of pressurization systems in aircraft
Back
Maintain cabin pressure to reduce altitude-related physiological effects.
Front
What is the oxygen saturation level at sea level under normal conditions
Back
Approximately 98-100%.
Front
What does the term "altitude sickness" refer to
Back
Adverse effects like headache, nausea, and dizziness due to rapid ascent to high altitudes.
Front
What is the average TUC at 25
Back
000 feet without supplemental oxygen, 3 to 5 minutes.
Front
What is the primary treatment for hyperventilation during flight
Back
Breathing into a paper bag or slowing breathing rate.
Front
What is hyperventilation
Back
Breathing faster than normal, leading to decreased carbon dioxide levels.
Front
What is the safer method to prevent hypoxia during flight
Back
Supplemental oxygen use.
Front
What is the primary cause of hypoxic hypoxia at altitude
Back
Reduced partial pressure of oxygen in the atmosphere.
Front
What is Boyle's Law and its relevance to flight physiology
Back
Gas volume is inversely proportional to pressure; explains gas expansion at altitude.
Front
What is the most common ear issue related to altitude changes
Back
Barotrauma or "ear block."
Front
What is the primary risk during rapid descent without pressure adjustment
Back
Barotrauma or gas expansion in body cavities.
Front
At what altitude do most people begin to experience mild hypoxia symptoms
Back
Around 10,000 feet.
Front
What mechanism prevents lung overexpansion in ascent
Back
Controlled exhalation or coughing to equalize pressure.
Front
How does TUC change with increasing altitude
Back
TUC decreases significantly as altitude increases.
Front
At what altitude do pressurization loss emergencies typically require immediate oxygen
Back
Above 14,000 feet.
Front
Which flight condition is associated with "The Bends
Back
" Rapid decompression or ascent causing nitrogen bubble formation in tissues.
Front
What is one common symptom of mild hypoxia
Back
Impaired judgment or euphoria.
Front
What physiological change helps acclimatization to high altitude over time
Back
Increased red blood cell production.
Front
What causes decompression sickness at high altitudes
Back
Nitrogen gas coming out of solution in your blood and tissues.
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Focuses on altitude-related physiological changes, including gas expansion, hypoxia, and compensatory mechanisms during air transport.