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Week 1

Homeostasis

TermDefinition
Homeostasis relatively constant states maintain by the body. (balance)
Heart Rate Variability indicated defect in cardiac regulatory mechanism that may produce disease or even death.
Set point/ Setpoint range normal reading or range of normal
Feedback Control Loops information- or feedback- may be transmitted in these control loops by nervous impulses or by specific chemical messenger.
Afferent a signal is traveling towards a particular center or point of reference.
Efferent the signal is moving away from a center or other point of reference.
Sensor being able to identify the characteristics or condition being controlled.
Integrator also known as integration center or control center of the feedback loop.
Effectors organs; such as muscle or glands, that directly influence controlled physiological variables.
Hypothalamus feedback information is relayed through the nerves to the "thermostat" in a part of the brain.
Negative Feedback temperature regulation by action of a thermostatically regulated furnace.
Stimulus change in a variable that elicits a reaction in a feedback.
Response the reaction-operation of the effector in a feedback loop
Positive Feedback possible control systems.
Oxytocin pituitary gland to secreted hormone.
Circadian daily cycles or rhythm
Feed-Forward complexity of control systems throughout the body.
Intracellular Control mechanisms operate at the cell level
Intrinsic Control mechanisms operate at the tissue and organ levels.
Extrinsic Control "outside" control and operates at the system and organism levels.
Created by: Sandoval.Sam
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