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Microbiology Study Guide: Membranes and Homeostasis

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Termini in questo insieme (14)

  • What is a serous membrane?
    A thin membrane that lines certain body cavities and covers organs, helping to reduce friction as organs move.
  • What does the parietal layer of a serous membrane do?
    It lines the wall of the body cavity.
  • What is the function of the visceral layer of a serous membrane?
    It covers the surface of the organ.
  • What is the role of serous fluid?
    A small amount of fluid between the parietal and visceral layers that reduces friction.
  • Define homeostasis.
    The process of keeping the body stable despite changes in the environment.
  • What is the role of a receptor in homeostasis?
    It detects changes in the environment or body.
  • What does the control center do in homeostasis?
    It decides the response to the detected change.
  • What is the function of an effector in homeostasis?
    It performs the response decided by the control center.
  • What is the correct order of components in a homeostatic control system?
    Receptor → Control center → Effector
  • What is a variable in the context of feedback?
    Something that can change within the body.
  • What is a set point in homeostasis?
    The normal target value for a variable.
  • What is negative feedback?
    A mechanism that reduces or reverses a change to maintain homeostasis.
  • Give an example of negative feedback that increases change.
    Childbirth is an example where negative feedback increases the change.
  • What is a climactic event in feedback systems?
    An event that stops the feedback process.