8.1 Kahoot - exam Flashcards

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1
Q

homeostasis is the ability of the body to maintain a ____ ______ _____.

A

stable internal environment

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2
Q

what are the 3 components of the feedback system

A

receptor, control center, effector

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3
Q

what is the purpose of a sensor/receptor in a feedback mechanism

A

to detect change in the internal environment

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4
Q

what is the purpose of a control center in a feedback mechanism?

A

to initiate a response to a stimulus

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5
Q

what is the purpose of an effector in a feedback mechanism

A

to produce a response to a stimulus

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6
Q

what are the consequences of homeostatic imbalance in the body

A

disease and illness

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7
Q

examples of homeostasis in human body?

A
  • regulation of blood pressure
  • regulation of body temperature
  • regulation of blood glucose levels
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8
Q

negative feedback systems…

A

return the body to a steady state

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9
Q

positive feedback systems…

A

enhanced and increases the initial stimulus

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10
Q

examples of negative feedback

A
  • shivering when cold
  • releasing insulin when sugar levels are low
  • sweating when hot
  • blood pressure regulation
  • body temp regulation
  • pH of blood
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11
Q

example of positive feedback

A
  • a fever
  • childbirth
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12
Q

what feedback system is the most common

A

negative

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13
Q

what is the purpose of a feedback mechanism in homeostasis

A

to detect changes in the internal environment and initiate a response

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