Fundamentals Flashcards
PNS
Peripheral Nervous System
Somatic - movement/sensing
Autonomic - unconscious
CNS
Brain and Spinal cORD
Neurons transmit info
Internal Respiration
Exchange of oxygen and carbon dioxide with cell membrane
External Respiration
Breathing
Metabolism
Utilisation of energy by your body
Homeostasis
Maintaining equilibrium in face of external stimulation
37 degrees
PH 7.35
Constant blood sugar
Sensory Threshold
Stimulus point in which a response is generated
Sensory Adaption
Decrease in physiological response over time
Sensory Habituation
Decrease in physiological/physiological response from repeated exposure
Proprioceptors
In Muscles
Detect and relay info
Mechanoreceptor
In Tendons
Fine control in muscles
Pressure receptor
Under skin/muscle
Detects pressure being exerted
Somatic Nervous System (PNS)
Conscious movements
Autonomic nervous system (PNS)
Unconscious processes - heart rate/breathing etc
Threats
External events beyond influence of flight crew