Flashcards in stress physiology Deck (20)
stress involves complex interactions of several body systems, what are these systems?
name the 3 stages in stress
- alarm reaction
- resistance phase
- exhaustion phase
what does the alarm reaction of stress include?
- fight, flight, fright response
- physiological components
what does the resistance phase of stress include?
adapting to stressor
what does the exhaustion of stress include?
- sever/persistant stress
- system fails
- pathological effects
in what way can stress be described as not all bad?
a little can improve learning
what neural components are associated with the alarm reaction of stress?
- increased co (increased hr)
- redistribution of co (increased flow to muscles, decreased flow to gut)
- metabolic (glycogen to glucose)
- adrenaline release
what hormonal components are associated with the alarm reaction of stress?
- adrenaline release
- glucocorticoid release
which nervous system, parasympathetic or sympathetic, is activated in times of stress?
what is the main stress hormone?
what metabolic effects does cortisol have during times of stress?
- increased energy production
- increased protein breakdown
- enhance action of adrenaline
glucocorticoids act as anti-inflammatories and immunosuppressive at times of stress, they do so by inhibiting what?
- release prostaglandins
- release of leukotriens'
- helper T cells
what does stress analgesia refer to?
reduced pain response after stress exposure
stress analgesia occurs due to the release of what?
- endogenous opiod peptides
what contributes to dental stress in patients?
- severity of treatement
- anxious/ dental phobics
- noise of dental instruments
- masks and gowns
what contributes to dental stress in dentists?
- oral surgery
- anxious patients
if a stressor continuous to be present, individuals either?
- cope (adaptation phase)
- don't cope (exhaustion phase)
failure of individual to adapt to stressor may cause what clinical effects?
- adrenal failure
- peptic ulcers
- CVS disease
describe a type A individual?
hard driving, competitive, prone to high BP and coronary heart disease