Page 128 - PPL BEG-engelsk

Human Performance

Human Performance

Indholdsfortegnelse Side

2.1 Introduction.............................................................................................. 132

2.2 The atmosphere we fly in ......................................................................... 133

2.3 Human respiratory system ........................................................................ 133

2.3.1 Lungs ....................................................................................................... 134

2.3.1.1 Alveoli ............................................................................................... 134
2.3.1.2 Gas exchange in an alveoli.................................................................. 135

2.3.2 The breathing mecanism ........................................................................ 135

2.3.2.1 Inhalation ......................................................................................... 136
2.3.2.2 Exhalation .......................................................................................... 136

2.3.3 Oxygen absorption ................................................................................. 137

2.3.3.1 Metabolism ....................................................................................... 138
2.3.3.2 Blood ................................................................................................. 138

2.3.3.3 Hæmoglobin ...................................................................................... 139

2.3.4 Oxygen deficiency ................................................................................... 140
2.3.4.1 Oxygen absorption at altitude ............................................................ 140

2.3.4.2 Oxygen deficiency at altitude ............................................................. 141

2.3.4.3 Symptoms of oxygen deficiency ......................................................... 142
2.3.4.4 Time of useful consciousness ............................................................. 142

2.3.5 Other causes of oxygen deficiency ........................................................... 143

2.3.5.1 G-forces ............................................................................................. 143

2.3.5.2 Hyperventilation ................................................................................ 144
2.3.5.3 Problems with pressure changes ........................................................ 144

2.3.5.4 Blood donations ................................................................................. 145
2.3.5.5 Other causes of oxygen deficiency ..................................................... 145

2.4 Human physiology .................................................................................... 146

2.4.1 The central and the peripheral nervous system ....................................... 147

2.4.1.1 The central nervous system ............................................................... 147

2.4.1.2 The peripheral nervous system .......................................................... 148
2.4.1.3 Processing information in the brain .................................................... 148

Flight Theory PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© marts 2026 128