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Homeostasis.

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Presentation on theme: "Homeostasis."— Presentation transcript:

1 Homeostasis

2 Asis, osis, sis = state or condition
Homeostasis Homo or homeo = same Asis, osis, sis = state or condition

3 Homeostasis Maintenance of constant conditions, or stable internal environment. (e.g. Team, 3 parts)

4 Receptor Receptors are sensitive to environmental changes, or stimulus.

5 Control Center Receives and processes information from the receptors.

6 Effectors Responds to the commands of the control center, opposes or enhances the stimulus.

7 Example: Heating your house via a thermostat.

8 When a stimulus makes the body change from homeostatic conditions, the body will respond. (Ex: Temp, blood lose)

9 Negative feedback Is when the body produces a stimulus that opposes the original stimulus. (ex. Page 15)

10 Positive feedback Initial stimulus produces a response that reinforces the stimuli. (Ex. Barf, page 16)

11 Electrolytes Compounds that dissolve into ions. (Ex. Salts. Alterations of these ions can disturb almost every vital function. Low K+ = muscular paralysis)


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