15910300
Beschreibung
Mindmap von Scott Harvey, aktualisiert more than 1 year ago
|
Erstellt von Scott Harvey
vor etwa 6 Jahre
|
|
Homeostasis Overview
- Negative feedback
- Inhibits stimulus
- Return to ideal
- SET
POINT
- SET
POINT
- Maintenance of equilibrium
- Return to ideal
- Change in
variable
- Detected by
receptor
- Processed in
integration
centre
- Effector
response
- Return to....
- Usually activated by
autonomic nervous
system
- Return to....
- Normally in medulla
- Effector
response
- Transmitted by
sensory neurones
- Processed in
integration
centre
- Detected by
receptor
- EXAMPLES
- High blood pressure
- Reduced cardiac output
- Vasodilation
- Reduced cardiac output
- Hyperglycaemia
- Release of insulin
- Release of insulin
- High blood pressure
- Inhibits stimulus
- Positive feedback
- Enhance stimulus
- Divergence from equilibrium
- Divergence from equilibrium
- EXAMPLES
- Blood clotting
- Platelets at clot release chemical to
attract more platelets
- Clot formed
- Clot formed
- Platelets at clot release chemical to
attract more platelets
- Childbirth
- Oxytocin released,
stimulates
contractions
- Contractions stimulate
release of more
oxytocin
- Continues until birth
- Continues until birth
- Contractions stimulate
release of more
oxytocin
- Oxytocin released,
stimulates
contractions
- Blood clotting
- Enhance stimulus
- Keeping vital parameters
within narrow limits
- Core body temperature
- Heart rate
- Blood pressure
- Blood glucose
- Osmolarity of plasma
- Urine concentration
- Core body temperature
- Rapid and efficient
communication around
body
- Nervous system
- Autonomic
- Electrical
communication
- Autonomic
- Endocrine system
- Hormones
- Chemical communication
- Hormones
- Nervous system
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