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Flashcards in stress physiology Deck (20)
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1

stress involves complex interactions of several body systems, what are these systems?

- nervous
- endocrine
- immune

2

name the 3 stages in stress

- alarm reaction
- resistance phase
- exhaustion phase

3

what does the alarm reaction of stress include?

- fight, flight, fright response
- physiological components

4

what does the resistance phase of stress include?

adapting to stressor

5

what does the exhaustion of stress include?

- sever/persistant stress
- system fails
- pathological effects

6

in what way can stress be described as not all bad?

a little can improve learning

7

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

8

what hormonal components are associated with the alarm reaction of stress?

- adrenaline release
- glucocorticoid release

9

which nervous system, parasympathetic or sympathetic, is activated in times of stress?

sns

10

what is the main stress hormone?

cortisol

11

what metabolic effects does cortisol have during times of stress?

- increased energy production
- increased protein breakdown
- enhance action of adrenaline
- anti-inflammatory
- immunosuppressant

12

glucocorticoids act as anti-inflammatories and immunosuppressive at times of stress, they do so by inhibiting what?

- release prostaglandins
- release of leukotriens'
- marcrophages
- helper T cells

13

what does stress analgesia refer to?

reduced pain response after stress exposure

14

stress analgesia occurs due to the release of what?

- endogenous opiod peptides
- endorphins
- enkephalins

15

what contributes to dental stress in patients?

- severity of treatement
- anxious/ dental phobics
- noise of dental instruments
- masks and gowns
- children

16

what contributes to dental stress in dentists?

- oral surgery
- anxious patients

17

if a stressor continuous to be present, individuals either?

- cope (adaptation phase)
- don't cope (exhaustion phase)

18

failure of individual to adapt to stressor may cause what clinical effects?

- adrenal failure
- immunosuppression
- peptic ulcers
- CVS disease

19

describe a type A individual?

hard driving, competitive, prone to high BP and coronary heart disease

20

describe a type B individual?

more relaxed and less impatient