Homeostasis Flashcards

(12 cards)

1
Q

Homeostasis

A

Maintenance of a relatively constant internal environment

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2
Q

Intracellular control systems

A

Communicate between specific or individual cells, only 1 cell

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3
Q

Organ systems

A

Communicate primarily through hormone release. Composed of three elements (sensor or receptor, control center, effector)

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4
Q

Sensor

A

Detects change in the variablein question

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5
Q

Control Center

A

Analyzes the singl from the sensor and relays information

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6
Q

Effector

A

Elicit the appropriate response to correct the disturbance

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7
Q

Negative Feedback (Give Example)

A

Response reverses the initial disturbance in homeostasis (Increase in extracellular CO2 triggers a receptor)

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8
Q

Positive Feedback (Give example)

A

Response increases the original stimulus (EX: Child Birth)

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9
Q

Adaptation

A

Improvement in the structure/ functions of a cell or organ to better deal with stress

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10
Q

Acclimatization

A

Physiological adjustments due to repeated exposure to extreme natural environments

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11
Q

Acclimation

A

Physiological adjustments due to repeated exposure to extreme unnatural environments

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12
Q

Stress proteins

A

Synthesized by cells when homeostasis is disrupted

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