Blood, Circulatory, And Immune Practice Test

57 Questions | Total Attempts: 405

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Blood, Circulatory, And Immune Practice Test - Quiz

Have you ever wondered what makes up a circulatory system and the coordination between these organs? Circulatory system is the portion of the cardiovascular system that pumps out oxygen depleted blood from the heart and pump in oxygenated blood through the pulmonary vein. Take up the blood, circulatory, and immune practice test and understand how this process works.


Questions and Answers
  • 1. 
    What is the function of the SA node?
    • A. 

      Spontaneously produces action potentials at regular intervals

    • B. 

      Atria depolarizes first, causing atrial systole

    • C. 

      "Pacemaker"

    • D. 

      All of the above

  • 2. 
    Which is not a part of an EKG?
    • A. 

      P-wave

    • B. 

      ESG connector

    • C. 

      QRS complex

    • D. 

      T-wave

  • 3. 
    We can measure the heart's electrical activity (and overall health) by taking
    • A. 

      Pacemakers

    • B. 

      BP

    • C. 

      Electrocardiograms (ECG/EKG)

    • D. 

      Heart transplants

  • 4. 
    What brain structure regulates heart rate?
    • A. 

      Medulla oblongata

    • B. 

      Brainstem

    • C. 

      Midbrain

    • D. 

      Pons

  • 5. 
    Mark all the characteristics of arteries
    • A. 

      Have thicker walls and smaller lumens

    • B. 

      Have thinner walls and larger lumens

    • C. 

      Tend to be rounder and deeper under the skin than veins

    • D. 

      Do not contain valves

    • E. 

      Skeletal muscle contraction pushes blood through veins

    • F. 

      Pressure from the heart moves blood through arteries

  • 6. 
    Mark all the characteristics of veins 
    • A. 

      Have thinner walls and larger lumens

    • B. 

      Do not contain valves

    • C. 

      Tend to be flatter/oval-shaped, closer to the surface of the skin

    • D. 

      Have one-way valves that keep blood flowing in the right direction

    • E. 

      Skeletal muscle contraction pushes blood through veins

    • F. 

      Pressure from the heart moves blood through arteries

  • 7. 
    Veins carry blood toward the heart
    • A. 

      True

    • B. 

      False

  • 8. 
    Arteries carry blood away from the heart
    • A. 

      True

    • B. 

      False

  • 9. 
    Systolic pressure is when the heart
    • A. 

      Relaxes

    • B. 

      Contracts

  • 10. 
    Diastolic pressure is when the heart
    • A. 

      Relaxes

    • B. 

      Contracts

  • 11. 
    Normal BP is 120/80 what is the top number called?
    • A. 

      Systolic pressure

    • B. 

      Diastolic pressure

  • 12. 
    Normal BP is 120/80 what is the bottom number called?
    • A. 

      Systolic pressure

    • B. 

      Diastolic pressure

  • 13. 
    Another name for RBCs are 
    • A. 

      Hemocytoblasts

    • B. 

      Hemoglobin

    • C. 

      Erythrocytes

    • D. 

      Hematocrit

  • 14. 
    Mark all the characteristics of erythrocytes 
    • A. 

      Limited life span- cannot self-repair or undergo mitosis

    • B. 

      Small, round, red, donut-shaped cells

    • C. 

      They are anucleate - they don't have a nucleus

    • D. 

      Help fight infection

    • E. 

      Have cilia to move around

  • 15. 
    Percentage of blood composed of red blood cells
    • A. 

      Hemocytoblasts

    • B. 

      Hemocrit

    • C. 

      Hemoglobin

    • D. 

      Hematopoiesis

  • 16. 
    Protein that makes up most of a RBC
    • A. 

      Hemoglobin

    • B. 

      Hematocrit

    • C. 

      Oxygen

    • D. 

      Hematopoiesis

  • 17. 
    In hemoglobin each proteins contains single iron (Fe) atom
    • A. 

      True

    • B. 

      False

  • 18. 
    (How hemogobin carries oxygen) When _____levels are high, Fe can bind to _____ molecules - lungs and most arteries - protein is bright red
    • A. 

      O2

    • B. 

      CO2

    • C. 

      C

    • D. 

      H

  • 19. 
    (hemoglobin carries oxygen) When _________ levels are high, Fe can bind to ________ instead - tissue, capillaries, most veins - protein is dark red
    • A. 

      C

    • B. 

      Fe

    • C. 

      CO2

    • D. 

      Cl

  • 20. 
    Are blood stem cells in red bone marrow 
    • A. 

      Hemoglobin

    • B. 

      Hemocytoblasts

    • C. 

      Hematopoiesis

    • D. 

      Homeostasis

  • 21. 
    What is the name for the process which hemocytoblasts undergo to become RBCs, platelets, and different kinds of WBCs?
    • A. 

      Differentiation

    • B. 

      Erythropoietin

    • C. 

      Initiation

    • D. 

      Mitosis

  • 22. 
    Hematopoiesis is the production of new blood cells
    • A. 

      True

    • B. 

      False

  • 23. 
    Hematopoiesis occurs in the
    • A. 

      Red bone marrow

    • B. 

      White bone marrow

  • 24. 
    Hematopoiesis is regulated by the hormone 
    • A. 

      Hemoglobin

    • B. 

      Adrenalin

    • C. 

      Platelets

    • D. 

      Erythropoeitin

  • 25. 
    On average, red blood cells live for 120 days
    • A. 

      True

    • B. 

      False

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