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13 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Variable found on the x axis manipulated by the researcher |
Independent variable |
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Variable found on the y axis |
Changes as a function of the independent variable |
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Maintenance of a constant and normal internal environment Usually under unstressed conditions |
Homeostasis |
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In this state, the physiological variable is unchanging, but not normal and not at rest |
Steady state |
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This component defects changes in variable |
Sensor |
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This component assesses input and initiates response |
Control center |
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This component changes the internal environment back to normal |
Effector |
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This feedback reverses the initial disturbance in homeostasis |
Negative feedback I.g... respiratory muscles are activated to increase breathing I.g... sweating, overheating |
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This feedback increases the original stimulus |
I.g childbirth |
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Do control systems maintain steady state during submaximal exercise |
Yes. |
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Change in structure or function of a cell or organ system Results in improved ability to maintain homeostasis |
Adaptation |
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Adaptation to environmental stresses |
Acclimatization |
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How do cells maintain homeostasis during exercise |
Exercise activates cell signaling pathways Activates transcription activator molecule- turns on genes that makes new proteins The activator binds to gene promoter region Stimulates transcription-- DNA transcribed to mRNA, the mRNA leaves the nucleus, and binds to ribosome, later translated Into protein |
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