BIOS251: Body Orientation and Homeostasis
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Questions and Answers

What is the direction of the sagittal plane in the body?

  • Front to back (correct)
  • Top to bottom
  • Side to side
  • Diagonal

    • Which type of feedback continues to make corrections until a negative feedback stops it?

  • Homeostasis
  • Positive feedback (correct)
  • Chemical reaction
  • Negative feedback

    • What is the charge of an electron?

  • Variable charge
  • Positive charge
  • Neutral charge
  • Negative charge (correct)

    • What is the result of not making corrections to restore homeostasis?

    <p>Disease (D)</p> Signup and view all the answers

    What type of reaction releases energy during the reaction?

    <p>Decomposition (A)</p> Signup and view all the answers

    What is the purpose of negative feedback in homeostasis?

    <p>To stop corrections when homeostasis is restored (D)</p> Signup and view all the answers

    What is the main function of the osteogenic layer of the periosteum?

    <p>To allow for bone remodeling and growth (A)</p> Signup and view all the answers

    What type of joint allows for little movement?

    <p>Amphiarthrosis (D)</p> Signup and view all the answers

    What is the function of osteoclasts?

    <p>To break down and dissolve bone tissue (B)</p> Signup and view all the answers

    What is the name of the type of bone cell found in lacunae?

    <p>Osteocytes (B)</p> Signup and view all the answers

    What is the term for the movement that decreases the angle between articulating bones?

    <p>Flexion (D)</p> Signup and view all the answers

    What is the function of the diaphysis?

    <p>To provide support and protection (D)</p> Signup and view all the answers

    What is the pH range of arterial blood?

    <p>7.35-7.45 (C)</p> Signup and view all the answers

    Where does transcription take place in a cell?

    <p>Nucleus (B)</p> Signup and view all the answers

    What is the function of keratinocytes in the epidermis?

    <p>Producing granules for water-proofing (D)</p> Signup and view all the answers

    What is the main function of eccrine sweat glands?

    <p>Cooling the body (D)</p> Signup and view all the answers

    What is the type of lever system involved in the movement of nodding the head?

    <p>First-class lever system (A)</p> Signup and view all the answers

    What is the function of the sarcoplasmic reticulum in a muscle cell?

    <p>To store calcium ions (B)</p> Signup and view all the answers

    What is the correct order of the steps of mitosis?

    <p>Interphase, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis (C)</p> Signup and view all the answers

    What is the function of the epidermis in the skin?

    <p>Protect against dehydration and infection (D)</p> Signup and view all the answers

    What type of muscle contraction occurs when the muscle lengthens while generating force?

    <p>Isotonic eccentric (B)</p> Signup and view all the answers

    What is the type of channel that is gated by a neurotransmitter?

    <p>Ligand-gated channel (C)</p> Signup and view all the answers

    What is the term for the summation of multiple EPSPs resulting in a greater response?

    <p>Temporal summation (D)</p> Signup and view all the answers

    What is the term for the muscle that is opposing the action of the agonist muscle?

    <p>Antagonist muscle (D)</p> Signup and view all the answers

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