At what altitude breathing 100% oxygen without pressure could symptoms of hypoxia be expected ?
Exam > pilot
You can survive at any altitude provided that ?
The volume percentage of oxygen in the atmosphere is 21% which ?
The percentage of oxygen in air at an altitude of approximately 34 000 ft Is constant at all altitudes conventional aircraft. benito oxygen pressure drops over fl380 i guess this the actual reason what made easa choose this answer you are right this question refers to learning objectives 040 02 01 02 respiratory circulatory systems hypoxia state equivalent altitudes when breathing ambient air 100% oxygen msl approximately 10 000 ft 30 000 ft 40 000 ft above 40000 ft 100% oxygen alone insufficient it must be supplied under pressure to oxygen mask. 
The respiratory process consists mainly of The diffusion of oxygen through respiratory membranes into blood transportation to cells diffusion into cells elimination of carbon dioxide from body. benito oxygen pressure drops over fl380 i guess this the actual reason what made easa choose this answer you are right this question refers to learning objectives 040 02 01 02 respiratory circulatory systems hypoxia state equivalent altitudes when breathing ambient air 100% oxygen msl approximately 10 000 ft 30 000 ft 40 000 ft above 40000 ft 100% oxygen alone insufficient it must be supplied under pressure to oxygen mask. 
Which of following applies to carbon monoxide poisoning Several days are needed to recuperate from a carbon monoxide poisoning. benito oxygen pressure drops over fl380 i guess this the actual reason what made easa choose this answer you are right this question refers to learning objectives 040 02 01 02 respiratory circulatory systems hypoxia state equivalent altitudes when breathing ambient air 100% oxygen msl approximately 10 000 ft 30 000 ft 40 000 ft above 40000 ft 100% oxygen alone insufficient it must be supplied under pressure to oxygen mask. 
How oxygen mainly transported in blood Haemoglobin in red blood cells. benito oxygen pressure drops over fl380 i guess this the actual reason what made easa choose this answer you are right this question refers to learning objectives 040 02 01 02 respiratory circulatory systems hypoxia state equivalent altitudes when breathing ambient air 100% oxygen msl approximately 10 000 ft 30 000 ft 40 000 ft above 40000 ft 100% oxygen alone insufficient it must be supplied under pressure to oxygen mask. Question Basics of Flight Physiology 102 Answer 8
Which gas most readily combines with haemoglobin Haemoglobin in red blood cells. benito oxygen pressure drops over fl380 i guess this the actual reason what made easa choose this answer you are right this question refers to learning objectives 040 02 01 02 respiratory circulatory systems hypoxia state equivalent altitudes when breathing ambient air 100% oxygen msl approximately 10 000 ft 30 000 ft 40 000 ft above 40000 ft 100% oxygen alone insufficient it must be supplied under pressure to oxygen mask. Question Basics of Flight Physiology 102 Answer 9
Which of following true concerning carbon monoxide It to be found in smoke of cigarettes lifting up a smoker's 'physiological altitude'. the physiological altitude the altitude feels the body example just 3 cigarettes smoked at sea level will raise physiological altitude to 8000 feet because carbon monoxide in cigarette smoke absorbed the haemoglobin its oxygen absorbing qualities are reduced to about same degree as they would be reduced the decrease in atmospheric pressure at 8000 feet above sea level. Question Basics of Flight Physiology 102 Answer 10
An increase in amount of carbon dioxide in blood leads to An increased respiratory rate. an increase of carbon dioxide in blood leads to a decrease in blood ph the drop in blood ph detected chemoreceptors in aorta carotid artery these receptors send nerve impulses to respiratory center in medulla oblongata in brain which then stimulates increased breathing increased breathing helps remove carbon dioxide from blood returning blood ph to normal levels. Question Basics of Flight Physiology 102 Answer 11
In alveoli gas exchange takes place external respiration which gas will diffuse from blood into lungs An increased respiratory rate. an increase of carbon dioxide in blood leads to a decrease in blood ph the drop in blood ph detected chemoreceptors in aorta carotid artery these receptors send nerve impulses to respiratory center in medulla oblongata in brain which then stimulates increased breathing increased breathing helps remove carbon dioxide from blood returning blood ph to normal levels. Question Basics of Flight Physiology 102 Answer 12
How can a pilot increase his tolerance to +gz Tightening of stomach muscles. an increase of carbon dioxide in blood leads to a decrease in blood ph the drop in blood ph detected chemoreceptors in aorta carotid artery these receptors send nerve impulses to respiratory center in medulla oblongata in brain which then stimulates increased breathing increased breathing helps remove carbon dioxide from blood returning blood ph to normal levels. Question Basics of Flight Physiology 102 Answer 13
Hypoxia caused Reduced partial oxygen pressure in lung. an increase of carbon dioxide in blood leads to a decrease in blood ph the drop in blood ph detected chemoreceptors in aorta carotid artery these receptors send nerve impulses to respiratory center in medulla oblongata in brain which then stimulates increased breathing increased breathing helps remove carbon dioxide from blood returning blood ph to normal levels. Question Basics of Flight Physiology 102 Answer 14
Hypoxia can be caused 1 low partial pressure of oxygen in atmosphere when flying at high altitudes without pressurisation and supplemental oxygen2 a decreased saturation of oxygen in blood due to carbon monoxide attached to hemoglobin3 blood pooling in lower extremities due to inertia + gz 4 malfunction of body cells to metabolize oxygen i e after a hangover 2 3 4 are correct. an increase of carbon dioxide in blood leads to a decrease in blood ph the drop in blood ph detected chemoreceptors in aorta carotid artery these receptors send nerve impulses to respiratory center in medulla oblongata in brain which then stimulates increased breathing increased breathing helps remove carbon dioxide from blood returning blood ph to normal levels. Question Basics of Flight Physiology 102 Answer 15
The symptoms of hypoxia include Visual disturbances lack of concentration euphoria. an increase of carbon dioxide in blood leads to a decrease in blood ph the drop in blood ph detected chemoreceptors in aorta carotid artery these receptors send nerve impulses to respiratory center in medulla oblongata in brain which then stimulates increased breathing increased breathing helps remove carbon dioxide from blood returning blood ph to normal levels. Question Basics of Flight Physiology 102 Answer 16
Which of following is/are symptom s of hypoxia Lack of concentration fatigue euphoria. an increase of carbon dioxide in blood leads to a decrease in blood ph the drop in blood ph detected chemoreceptors in aorta carotid artery these receptors send nerve impulses to respiratory center in medulla oblongata in brain which then stimulates increased breathing increased breathing helps remove carbon dioxide from blood returning blood ph to normal levels. Question Basics of Flight Physiology 102 Answer 17
Which statement applies to hypoxia Sensitivity reaction to hypoxia varies from person to person. an increase of carbon dioxide in blood leads to a decrease in blood ph the drop in blood ph detected chemoreceptors in aorta carotid artery these receptors send nerve impulses to respiratory center in medulla oblongata in brain which then stimulates increased breathing increased breathing helps remove carbon dioxide from blood returning blood ph to normal levels. Question Basics of Flight Physiology 102 Answer 18
Hypoxia can be caused A lack of red blood cells in blood or decreased ability of haemoglobin to transport oxygen. an increase of carbon dioxide in blood leads to a decrease in blood ph the drop in blood ph detected chemoreceptors in aorta carotid artery these receptors send nerve impulses to respiratory center in medulla oblongata in brain which then stimulates increased breathing increased breathing helps remove carbon dioxide from blood returning blood ph to normal levels. Question Basics of Flight Physiology 102 Answer 19
Breathing 100% oxygen will elevate pilot's physiological safe altitude to approximately A lack of red blood cells in blood or decreased ability of haemoglobin to transport oxygen. the physiological altitude the altitude feels the body example just 3 cigarettes smoked at sea level will raise physiological altitude to 8000 feet because carbon monoxide in cigarette smoke absorbed the haemoglobin its oxygen absorbing qualities are reduced to about same degree as they would be reduced the decrease in atmospheric pressure at 8000 feet above sea level the physiological altitude to which human organism can be adapted easily defined to be 0 10000 ft above 10000ft cabin altitude it necessary to increase proportion of oxygen supplied to lungs gradually up to 100% oxygen (at 40000 ft) at 40000 ft with 100% oxygen you will have reach max safe physiological altitude which around 10000 ft above 40000 ft 100% oxygen alone insufficient it must be supplied under pressure to oxygen mask. Question Basics of Flight Physiology 102 Answer 20
The most dangerous symptoms of hypoxia at altitude are Euphoria impairment of judgement. the physiological altitude the altitude feels the body example just 3 cigarettes smoked at sea level will raise physiological altitude to 8000 feet because carbon monoxide in cigarette smoke absorbed the haemoglobin its oxygen absorbing qualities are reduced to about same degree as they would be reduced the decrease in atmospheric pressure at 8000 feet above sea level the physiological altitude to which human organism can be adapted easily defined to be 0 10000 ft above 10000ft cabin altitude it necessary to increase proportion of oxygen supplied to lungs gradually up to 100% oxygen (at 40000 ft) at 40000 ft with 100% oxygen you will have reach max safe physiological altitude which around 10000 ft above 40000 ft 100% oxygen alone insufficient it must be supplied under pressure to oxygen mask. Question Basics of Flight Physiology 102 Answer 21
Dizziness and tumbling sensations when making head movements in a tight turn are symptoms of Euphoria impairment of judgement. pilot's vertigo same as coriolis illusion coriolis illusion the illusion of rotation or movement in an entirely different axis caused an abrupt head movement while in a prolonged constant rate turn that has ceased to stimulate brain s motion sensing system this involves simultaneous stimulation of two semicircular canals is associated with a sudden tilting (forward or backwards) of pilot's head while aircraft turning this can occur when tilting head down (to look at an approach chart or to write on knee pad) or up (to look at an overhead instrument or switch) or sideways this can produce an overpowering sensation that aircraft rolling pitching yawing all at same time which can be compared with sensation of rolling down a hillside this illusion can make pilot quickly become disoriented lose control of aircraft. Question Basics of Flight Physiology 102 Answer 22
'pilot's vertigo' Is condition of dizziness and/or tumbling sensation caused contradictory impulses to central nervous system (cns). pilot's vertigo same as coriolis illusion coriolis illusion the illusion of rotation or movement in an entirely different axis caused an abrupt head movement while in a prolonged constant rate turn that has ceased to stimulate brain s motion sensing system this involves simultaneous stimulation of two semicircular canals is associated with a sudden tilting (forward or backwards) of pilot's head while aircraft turning this can occur when tilting head down (to look at an approach chart or to write on knee pad) or up (to look at an overhead instrument or switch) or sideways this can produce an overpowering sensation that aircraft rolling pitching yawing all at same time which can be compared with sensation of rolling down a hillside this illusion can make pilot quickly become disoriented lose control of aircraft. Question Basics of Flight Physiology 102 Answer 23
What can a pilot do to avoid 'flicker vertigo' when flying in clouds Switch strobe lights off. pilot's vertigo same as coriolis illusion coriolis illusion the illusion of rotation or movement in an entirely different axis caused an abrupt head movement while in a prolonged constant rate turn that has ceased to stimulate brain s motion sensing system this involves simultaneous stimulation of two semicircular canals is associated with a sudden tilting (forward or backwards) of pilot's head while aircraft turning this can occur when tilting head down (to look at an approach chart or to write on knee pad) or up (to look at an overhead instrument or switch) or sideways this can produce an overpowering sensation that aircraft rolling pitching yawing all at same time which can be compared with sensation of rolling down a hillside this illusion can make pilot quickly become disoriented lose control of aircraft. Question Basics of Flight Physiology 102 Answer 24
What do you do when you are affected 'pilot's vertigo' 1 establish and maintain an effective instrument cross check 2 believe instruments 3 ignore illusions 4 minimize head movements 2 3 4 are correct. pilot's vertigo same as coriolis illusion coriolis illusion the illusion of rotation or movement in an entirely different axis caused an abrupt head movement while in a prolonged constant rate turn that has ceased to stimulate brain s motion sensing system this involves simultaneous stimulation of two semicircular canals is associated with a sudden tilting (forward or backwards) of pilot's head while aircraft turning this can occur when tilting head down (to look at an approach chart or to write on knee pad) or up (to look at an overhead instrument or switch) or sideways this can produce an overpowering sensation that aircraft rolling pitching yawing all at same time which can be compared with sensation of rolling down a hillside this illusion can make pilot quickly become disoriented lose control of aircraft. Question Basics of Flight Physiology 102 Answer 25
Which flight manoeuvre will most likely induce vertigo turning head while 2 3 4 are correct. pilot's vertigo same as coriolis illusion coriolis illusion the illusion of rotation or movement in an entirely different axis caused an abrupt head movement while in a prolonged constant rate turn that has ceased to stimulate brain s motion sensing system this involves simultaneous stimulation of two semicircular canals is associated with a sudden tilting (forward or backwards) of pilot's head while aircraft turning this can occur when tilting head down (to look at an approach chart or to write on knee pad) or up (to look at an overhead instrument or switch) or sideways this can produce an overpowering sensation that aircraft rolling pitching yawing all at same time which can be compared with sensation of rolling down a hillside this illusion can make pilot quickly become disoriented lose control of aircraft. Question Basics of Flight Physiology 102 Answer 26
The semicircular canals of inner ear monitor Angular accelerations. in inner ear function of semicircular canals to monitor angular acceleration angular acceleration acceleration around axis of pilot. Question Basics of Flight Physiology 102 Answer 27
Which part of ear could be affected due to air pressure changes during climb and/or descent The eustachian tube the tympanic membrane (ear drum). in inner ear function of semicircular canals to monitor angular acceleration angular acceleration acceleration around axis of pilot. Question Basics of Flight Physiology 102 Answer 28
Which part of inner ear responsible the perception of sound The eustachian tube the tympanic membrane (ear drum). in inner ear function of semicircular canals to monitor angular acceleration angular acceleration acceleration around axis of pilot. Question Basics of Flight Physiology 102 Answer 29
Which part of vestibular apparatus affected changes in gravity and linear acceleration The sacculus utriculus. in inner ear function of semicircular canals to monitor angular acceleration angular acceleration acceleration around axis of pilot. Question Basics of Flight Physiology 102 Answer 30
Which part of vestibular apparatus responsible the detection of angular acceleration The semicircular canals. in inner ear function of semicircular canals to monitor angular acceleration angular acceleration acceleration around axis of pilot. Question Basics of Flight Physiology 102 Answer 31
The vestibular apparatus Reacts to linear/angular acceleration gravity. in inner ear function of semicircular canals to monitor angular acceleration angular acceleration acceleration around axis of pilot. Question Basics of Flight Physiology 102 Answer 32
Which of following components belong to middle ear Reacts to linear/angular acceleration gravity. in inner ear function of semicircular canals to monitor angular acceleration angular acceleration acceleration around axis of pilot. Question Basics of Flight Physiology 102 Answer 33
Through which part of ear does equalization of pressure take place when altitude changed Reacts to linear/angular acceleration gravity. in inner ear function of semicircular canals to monitor angular acceleration angular acceleration acceleration around axis of pilot. Question Basics of Flight Physiology 102 Answer 34
Concerning effects of drugs and pilot's performance The primary the side effects have to be considered. in inner ear function of semicircular canals to monitor angular acceleration angular acceleration acceleration around axis of pilot. Question Basics of Flight Physiology 102 Answer 35
What understood air sickness A sensory conflict within vestibular system accompanied nausea vomiting. in inner ear function of semicircular canals to monitor angular acceleration angular acceleration acceleration around axis of pilot. Question Basics of Flight Physiology 102 Answer 36
Cigarette smoking has particular significance to flyer because there are long term and short term harmful effects from cigarette smoking pilot can get A mild carbon monoxide poisoning decreasing pilot's tolerance to hypoxia. in inner ear function of semicircular canals to monitor angular acceleration angular acceleration acceleration around axis of pilot. Question Basics of Flight Physiology 102 Answer 37
A pilot who smokes will lose some of his capacity to transport oxygen combined with haemoglobin which percentage of his total oxygen transportation capacity would he give away when he smokes one pack of cigarettes a day A mild carbon monoxide poisoning decreasing pilot's tolerance to hypoxia. in inner ear function of semicircular canals to monitor angular acceleration angular acceleration acceleration around axis of pilot. Question Basics of Flight Physiology 102 Answer 38
Flying at pressure altitude of 10 000 ft a pilot being a moderate to heavy smoker has an oxygen content in blood equal to an altitude A mild carbon monoxide poisoning decreasing pilot's tolerance to hypoxia. a person at sea level who regularly smokes a pack of cigarettes a day may theoretically be at 7000 ft so at 10 000 ft a pilot being a moderate to heavy smoker has an oxygen content in blood equal to an altitude above 10 000 ft. Question Basics of Flight Physiology 102 Answer 39
Which of following applies when alcohol has been consumed Even after consumption of small amounts of alcohol normal cautionary attitudes may be lost. a person at sea level who regularly smokes a pack of cigarettes a day may theoretically be at 7000 ft so at 10 000 ft a pilot being a moderate to heavy smoker has an oxygen content in blood equal to an altitude above 10 000 ft. Question Basics of Flight Physiology 102 Answer 40
Alcohol when taken simultaneously with drugs may Intensify effects of drugs. a person at sea level who regularly smokes a pack of cigarettes a day may theoretically be at 7000 ft so at 10 000 ft a pilot being a moderate to heavy smoker has an oxygen content in blood equal to an altitude above 10 000 ft.
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