Anatomy and Physiology Basics Quiz
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Questions and Answers

What type of feedback loop occurs when the effector's activity increases in response to a stimulus and reinforces the initial stimulus?

  • Reactive feedback loop
  • Neutral feedback loop
  • Negative feedback loop
  • Positive feedback loop (correct)
  • Which physiological principle states that structure and function are related at all levels of organization?

  • Core Principle 3: Gradients Drive Many Physiological Processes
  • Core Principle 4: Cell-Cell Communication is Required to Coordinate Body Functions
  • Core Principle 2: Structure and Function Are Related at All Levels of Organization (correct)
  • Core Principle 1: Homeostasis Maintains Internal Stability
  • What type of gradient is present any time more of something exists in one area than another and the two areas are connected?

  • Pressure gradient
  • Temperature gradient
  • Electrical gradient
  • Concentration gradient (correct)
  • How does communication between cells of the body primarily occur?

    <p>Chemical messengers</p> Signup and view all the answers

    What is the main focus of anatomy?

    <p>The study of the human body's form and structure</p> Signup and view all the answers

    At which level of structural organization would you find muscle tissue and nervous tissue?

    <p>Tissue Level</p> Signup and view all the answers

    What is the core principle involving the maintenance of the body's stable internal environment?

    <p>Homeostasis</p> Signup and view all the answers

    What type of feedback loop involves a change in the variable in one direction resulting in actions that cause changes in the variable in the opposite direction?

    <p>Negative feedback loops</p> Signup and view all the answers

    What is the study of structures with the help of a microscope?

    <p>Microscopic anatomy</p> Signup and view all the answers

    At which level of structural organization would you find the respiratory system, excretion system, and digestive system?

    <p>Organ Level</p> Signup and view all the answers

    In which type of feedback loop does a change in the variable result in actions that amplify the change in the same direction?

    <p>Positive feedback loop</p> Signup and view all the answers

    What is the core principle involving the maintenance of the body's stable internal environment?

    <p>Homeostasis</p> Signup and view all the answers

    Which physiological principle states that structure and function are related at all levels of organization?

    <p>Core Principle 1: Homeostasis and Feedback Loops</p> Signup and view all the answers

    How does positive feedback differ from negative feedback?

    <p>Positive feedback requires an initial stimulus, while negative feedback does not.</p> Signup and view all the answers

    In what way do blood vessels exemplify the principle of 'form follows function'?

    <p>The hollow tube structure of blood vessels enables them to transport blood through the body.</p> Signup and view all the answers

    Which type of gradient is present when there is a difference in the concentration of a substance between two connected areas?

    <p>Concentration gradient</p> Signup and view all the answers

    What characterizes cell-cell communication within the human body?

    <p>Cell-cell communication involves both electrical signals and chemical messengers.</p> Signup and view all the answers

    Which process characterizes a positive feedback loop?

    <p>The response reinforces and amplifies the initial stimulus.</p> Signup and view all the answers

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