Stress pt1

Question 1

define stressor

Answer 1

situation that causes stress to system

Question 2

define stress reactivity

Answer 2

way we respond to stressor

Question 3

4 ways body changes when we feel stress

Answer 3

changes in breathing
exacerbate existing mental health problems
changes in eating
diarrhea and constipation

Question 4

3 things that happens with long term exposure to stress

Answer 4

muscles always tense, fatiguing
tension headache
long term heart and blood problems

Question 5

Everson-rode et al 2014 study procedure

Answer 5

multi ethic study of artery illness
pop-based study 6749 adults
45-84 years, free from cardiovascular disease
followed up after 8.5 years
stress measured

Question 6

everson-rose et al 2014 study findings

Answer 6

chronic stress predicted an increased likelihood of stroke over follow up period (10% increase)

Question 7

who first found fight/flight response

Answer 7

walter cannon

Question 8

what did walter say were the responses of fight/flight

Answer 8

arousal
increased blood and sugar
violent bursts of energy

Question 9

how does long term stress impact immune system

Answer 9

stress- via cortisol- directly supresses immune activity

Question 10

keller 1983 study (chronic stress and immune system) procedure and findings

Answer 10

gave arts inescapable shock
removed adrenal gland (cortisol)
no immune response to shock
but normal immune response to antigen

so cortisol plays role in immune response to shock

Question 11

Kiecolt-glaser et al study (chronic stress and immune, healing) procedure and findings

Answer 11

13 caregivers and 13 controls
gave punch biopsy

would took longer to heal in caregivers

Question 12

glaser et al study (exams and immune system) procedure and findings

Answer 12

blood samples of 40 medical students
during exams and a month after

during exams, immune system weakened

Question 13

3 components of HPA axis and roles

Answer 13

hypothalmus- releases CRH
pituitary gland- detects CRH and releases ACTH
adrenal gland- detects ACTH and releases cortisol

Question 14

4 roles of cortisol

Answer 14

anti inflammatory
regulate bp and bs
manages carbs, proteins and fats
acts on hypothalamus to downreg release of CRH and ACTH, breaks cycle

Question 15

Bard 1928 study (hypothalamus and F&F) procedure and findings

Answer 15

removed most of cerebral cortex with or wothout hypothalmus
intact hypothalmus= undirected rage
so involved in F and F

Question 16

stages of the autonomic nervous system response to stress (sympathetic and parasympathetic)

Answer 16

sympathetic- F or F
1. increases HR and BP
2. deep blood vessels dilate and superficial blood vessels constrict
3. stimulates adrenal medualla to release adrenaline
4. adrenaline increases effect of SNS and dilates pupils
norarenaline released from brain, ehances cognition

parasympathetic- rest and digest
1. HR and BPdecrease
peristalsis restarts

Question 17

what is role of adrenaline

Answer 17

releases stored forms of energy
protein to glucose
stimulates heart and organs

Question 18

what sre the 3 satges in Selyes general adaptation syndrome (how we respond to stress)

Answer 18

alarm
resistance
exhaustion

Question 19

what is ALARM

Answer 19

arousal of ANS
adrenaline and cortisol in blood
SNS activated
F/F

Question 20

what is RESISTANCE

Answer 20

continued expose to stress
PNS returns
overtime, resistance to stressor increases
results in adaptation to environmental stress