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week 1
Chapter 2
17
Pathology
Undergraduate 2
04/16/2012

Additional Pathology Flashcards

 


 

Cards

Term
Homeostasis
Definition
When the body reaches equilibrium (works hard to maintain it)
Term
Homeostatic Response
Definition
Internal series of response specifically to NORMALIZE slected physiologi variables. (Negative feedbakc principle)
Term
Allostasis
Definition
Process of acheiving stability, is essential in maintaining homeostasis
Term
What is the difference between homestasis and allostasis?
Definition

Homeostasis: Regulation of the body to BALANCE

ex: when hot, you sweat or you get dehydrated

 

Allostasis: Adaption; ability to ACHIEVE stability through change, includes OTHER functioning systems/organs

ex: aside from sweating, kidneys may reduce in size...

 

 

Term

stress

 

Definition
psychological and psycosocial anxiety of and individual towards personal emablance of events
Term
GAS
Definition

(General adapation syndrome)

-Body's ability to react to stress (hormonal rxn to fight or flight response to stress)

 

alarm- body's fight or flight

resistance- allostatic state, attempting to restore homeostasis

exhaustion- body's ability to resist is lost because adaption energy supply is gone. (stress levels stay up; "allostatic overload") 

 

 

 

 

Term
Stressors
Definition

Agents or conditions that can produce stress and endanger homeostasis

ex: physical, chemical, emotional, biological, social, cultural...

Term
Risk Factors of stress
Definition

not stressors, but CONDITIONS or SITUATIONS that increase the likelyhood of encountering a stressor

 

ex: running in the dark is a risk factor of falling; eating while driving is a risk factor of running into a motercyclist

Term
Stress Response
Definition
Natural Reaction of the human body against stress; is evoked by stoumlating the nervous sys/ hormones such as adrenalin/ cortisol which enhance the body's heart rate, breating, blood pressure, metabolism
Term
Growth hormone
Definition
can increase during stress to enhance immune function (regulates lactation; mammary glands)
Term
Prolactin
Definition
similar in structure to growth hormone; role in immune response
Term
oxytocin
Definition

"love hormone"

role in sexual reproduction, childbirth. produced during childbirth and lactation, associated with bonding and social attachment

Term
Indivual stress response
Definition
change with time and circumstances
Term
effects of stress response
Definition
influenced by genetics, culture, prior susceptibilities, preexisting health status, allostatic state, and ability to manage stress
Term
adaption
Definition
ability to be accustomed to different environmental changes/ stressors
Term
coping
Definition
emotional/behavioral responses to achieve balance
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