Patho test 1 (4)

  1. Allostasis
    short term protective mechanism to bring body back to homeostasis
  2. Allostatic load
    over activation of adaptive regulatory systems that lead to susceptibility to disease
  3. individualized influences on stress response
    age, gender, biological cycles (menstrual cycle),  culture (must be culturally sensitive/react differently), personality characteristics
  4. General Adaptation Syndrome (GAS Adaptation Syndrome)
    a cluster of systemic manifestations that represent an attempt to cope with a stressor
  5. threes stages of GAS
    alarm, resistance (goes back to normal) and exhaustion
  6. alarm stage
    emergency reaction "fight or flight"
  7. hypothalamic-pituitary-adrenal (HPA) axis
    which activates sympathetic nervous system
  8. alarm stage
    • *Stressors trigger hypothalamic-pituitary-adrenal (HPA) axis which activates sympathetic nervous system
    • *Epinephrine and norepinephrine along with other hormones are released
  9. resistance stage/adaptation phase
    • *attempts homeostasis 
    • *actions of adrenal hormones 
    • *continued mobilization of the body's resources to cope ad overcome a sustained challenge
  10. Exhaustion stage/ allostatic overload
    • *no longer can produce hormones 
    • *occurs only if stress continues and adaptation is not successful 
    • *body's physiologic and immune systems no longer effectively cope with the stressor and marks the onset of disease
  11. reactive responses
    involves a physiological responses from psychological stressors (sweating when receiving bad news)
  12. anticipatory response
    • *the body mounts a physiological response because of the anticipation of disruption of the 'steady or stat' or homeostasis 
    • *generated by the fear of a potential encounter associated with a previous abusive situation
    • (nervous after already knowing bad news)
  13. Hypothalamic-Pituitary-Adrenal (HPA) Axis: hypothalamus secretes
    corticotropin releasing hormone (CHR)
  14. Hypothalamic-Pituitary-Adrenal (HPA) Axis: Pituitary release
    adrenocorticotropic hormone (ACTH)
  15. Hypothalamic-Pituitary-Adrenal (HPA) Axis: Adrenals secrete
    cortisol and catecholamines
  16. cortisol
    • *leads to poor wound healing 
    • *reaches all tissues
    • *stimulates gluconeogensis 
    • *abnormal elevations linked to:
    • -obesity
    • -sleep deprivation 
    • -HTN (hypertension)
    • -diabetes
    • -artheroscierosis
    • -loss of bone density
    • -elevated lipid levels
  17. what can cortisol do?
    • *elevate blood glucose levels 
    • *Affects protein metabolism
    • *Promotes resolution and repair
    • *Induce T-cell apoptosis
    • *Influences all immune cells
    • *Used therapeutically as powerful anti-inflammatory/immunosuppressive agents
    • *Cognitive impairments
  18. Catecholamines
    • •Released from the adrenal medulla
    • -80 % Epinephrine 20 % Norepinephrine is released
    • •α-adrenergic receptors
    • -α1 and α2
    • •β-adrenergic receptors
    • -β1 and β2
    • •Mimic direct sympathetic stimulation
    • •Increases proinflammatory cytokine productio
  19. what do catecholamines do?
    • *increased blood flow and increased glucose metabolism in the brain 
    • *increased rate and force of contraction 
    • *Peripheral vas contribution 
    • *Bronchodilation in the pulmonary system.
  20. Stress-age syndrome
    •Excitability changes in the limbic system and hypothalamus•Increased catecholamines, ADH, ACTH, and cortisol•Decreased testosterone, thyroxine, and other hormones•Immunosuppression and pattern of chronic inflammation•Alterations in lipoproteins•Hypercoagulation of the blood•Free radical damage of cells
  21. Adverse Childhood Experiences (ACEs)
    •Risky health behaviors•Chronic health conditions•Low life potential•Early death•
  22. Child Abuse and Neglect
    •Acts of Commission (Child Abuse)•Acts of Omission (Child Neglect)
  23. homeostasis
    the balance of bodily functions
Author
hey_itsdarra
ID
337958
Card Set
Patho test 1 (4)
Description
module 1
Updated