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Homeostasis https://www.youtube.com/watch?v=62e8IV-WT8c&feature=youtu.be https://www.youtube.com/watch?v=cErYz-D5taA The process by which a constant ____________ environment is maintained despite changes in the ____________ environment. Homeostasis

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Homeostasis

https://www.youtube.com/watch?v=62e8IV-WT8c&feature=youtu.be

https://www.youtube.com/watch?v=cErYz-D5taA

The process by which a constant ____________ environment is maintained despite changes in the ____________ environment.

Homeostasis

Components of the homeostatic control system

Page 3: Homeostasis - WordPress.com · Dynamic(Equilibrium • Changes$can$occur$in$blood$glucose,$temperature,$blood$pressure$&$blood$pH • BUT$they$stay$within$an$acceptable$range$to$sustain$life

The Wallenda Modelhttps://www.youtube.com/watch?v=S90DnKM_j4Q

Variable?

Setpoint?

Monitor?

Coordinating Centre?

Regulator?

Dynamic Equilibrium• Changes can occur in blood glucose, temperature, blood pressure & blood pH

• BUT they stay within an acceptable range to sustain life

How is homeostasis maintained??

Two feedback mechanisms

• Change in conditions triggers response

• The response serves to _______ the change • Change in conditions trigger a response• Response serves to _________ the change

What is the value?

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Thermoregulation-‐ We want to maintain an optimal range of _________ _________________ to allow our cells to function efficiently.

https://www.youtube.com/watch?v=-W7kAyUQT0E

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https://www.youtube.com/watch?v=eZgv9oogscU

How do they survive!?

https://www.youtube.com/watch?v=pLPeehsXAr4

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What type of feedback loop?

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