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stress
final patho
| Term | Definition |
|---|---|
| Effects of stress | Heart burn, rapid breathing, fertility problems, Missed period, insomnia, depression, weak immune system, high blood sugar, HTN, tense muscles, low sex drive |
| Stressor | challenging demand on body that arouses a response from multiple organ systems |
| Adaptive ability | the way someone manages stress and reduces the stressor effect |
| 3 stages of stress | 1. Alarm 2. Resistance 3. Exhaustion |
| Selye's alarm | FIGHT< FLIGHT< FREEZE |
| During Selye's alarm, what does the hypothalamus release | CRF, Corticotrophin releasing factor |
| ACTH stimulates adrenal cortex to release ------- | cortisol and aldosterone |
| ACTH stimulates adrenal medulla to release------- | norepinephrine and epinephrine |
| When ACTH stimulates adrenal medulla what happens in the body? (fight or flight) | Bronchioles dilate, sweat glands increase, vasoconstriction, pupils dilate, blood flow decreases, increased alertness, resp capacity, visual acuity |
| When ACTH stimulates adrenal cortex what happens in the body? | cortisol, enhances muscle strength, increased bloo glucose, |
| Posterior pit gland secretes | ADH aka vasopressin |
| Selye's resistance | body attempts to delay effects of stress; para sympathetic responses resume relaxation |
| Selye's exhaustion | if stress if prolonged; high level of hormones= exhaustion |
| What can Selye's exhaustion cause | Depression, anxiety, fatigue |
| McEwen's stress response | cumulative adverse heath affects of reoccurring stress |
| Allostasis | state of balance that changes according to stress exposure |
| Allostasis accumulates because of 4 mechanisms: | 1. repeated stressful experiences 2. inability to adapt to stress 3. prolonged reaction to stress 4. inadequate response to stress |
| Normal stage of HTN | < 120 / < 80 |
| Elevated stage of HTN | 120-129 / <80 |
| Stage 1 HTN | 130-139 / 80-89 |
| Stage 2 HTN | >140 / >90 |
| Secondary HTN | side effect from: Cushing's, kidney disease |
| risk factors for HTN | tobacco use, excess sodium, insufficient K or D, alcohol, stress, DM |
| If systemic BP is high, aortic is | increased |
| stress= elevated levels of what | angiotensin II |
| Atherosclerosis | Gradual plaque buildup on artery walls |
Created by:
Anna91715
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