Mini Midterm quiz
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Mini Midterm quiz

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Questions and Answers

Which gland is responsible for circadian rhythm and initiating sleepiness?

  • Pancreas
  • Thymus
  • Pineal gland (correct)
  • Thyroid

    • Which gland contains islets of Langerhans and is responsible for regulating blood sugar levels?

  • Thyroid
  • Pancreas (correct)
  • Pineal gland
  • Thymus

    • Which gland is responsible for metabolism regulation?

  • Thyroid (correct)
  • Thymus
  • Pancreas
  • Pineal gland

    • Which gland is the primary organ of the lymphatic system?

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

    Which gland is located within the cranial cavity within the brain?

    <p>Pineal gland</p> Signup and view all the answers

    Which gland is located within the neck and has a butterfly shape?

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

    Which cells are responsible for antibody mediated immunity?

    <p>B cells</p> Signup and view all the answers

    Where do B cells originate and mature?

    <p>Red bone marrow</p> Signup and view all the answers

    Where do T cells mature?

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

    Which cells directly attack infected cells?

    <p>Killer T cells</p> Signup and view all the answers

    What is the process called when lymph nodes physically stop particles from progressing further in the body?

    <p>Mechanical filtration</p> Signup and view all the answers

    What is the difference between active and passive immunity?

    <p>Active immunity occurs when one's own system responds to harmful agents, passive immunity is transferred</p> Signup and view all the answers

    Which type of leukocyte is the largest?

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

    What is the main function of the thymus?

    <p>Secretion of hormones for T cell development</p> Signup and view all the answers

    What is the process through which phagocytosis occurs?

    <p>All of the above</p> Signup and view all the answers

    What is the function of albumin in the plasma?

    <p>Maintenance of osmotic pressure</p> Signup and view all the answers

    What is the role of thrombocytes in the blood?

    <p>Assisting in blood clotting</p> Signup and view all the answers

    What is the function of prothrombin in the blood clotting process?

    <p>Conversion of fibrinogen into fibrin</p> Signup and view all the answers

    Which of the following is NOT a role of platelets in hemostasis?

    <p>Initiate the formation of megakaryocytes</p> Signup and view all the answers

    During which phase of the cardiac cycle do the SL valves open and blood is ejected from the heart?

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

    What is the purpose of the isovolumetric ventricular relaxation phase in the cardiac cycle?

    <p>To prevent backflow of blood into the ventricles</p> Signup and view all the answers

    Which structure is responsible for relaying information about blood pressure within the autonomic nervous system?

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

    Which layer of the heart wall is the outermost layer?

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

    What is the formula for cardiac output?

    <p>Cardiac output = stroke volume x heart rate</p> Signup and view all the answers

    Which of the following statements about stroke volume is correct?

    <p>The stronger the ventricular contraction, the greater the stroke volume.</p> Signup and view all the answers

    Which of the following waves in an ECG represents ventricular contraction?

    <p>QRS complex</p> Signup and view all the answers

    What is the purpose of the hepatic portal vein?

    <p>To filter the blood from the digestive system before distributing it to the rest of the body.</p> Signup and view all the answers

    What factors affect peripheral resistance to blood flow?

    <p>All of the above.</p> Signup and view all the answers

    How does lymph flow through the lymphatic vessels?

    <p>Lymph flows through the lymphatic vessels due to the high number of valves that permit fluid in only one direction.</p> Signup and view all the answers

    What are the primary cells involved in the adaptive immune system?

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

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