Science - The Circulatory System

Card Set Information

Author:
mshowley
ID:
149879
Filename:
Science - The Circulatory System
Updated:
2016-11-21 10:28:20
Tags:
Circulatory System
Folders:

Description:
The Circulatory System
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user mshowley on FreezingBlue Flashcards. What would you like to do?


  1. State the role of the circulatory system
    Transport 

    Defence against disease

    Homeostasis, including regulating body temperature
  2. Where is blood made?
    In the bone marrow
  3. List the four components of blood
    Plasma

    Red blood cells

    White blood cells

    Platelets
  4. What are the functions of blood?
    To transport oxygen

    To transport food and hormones around the body
  5. List the three types of blood vessels
    Arteries

    Veins

    Capillaries
  6. State the function of plasma
    To transport food around the body

    To keep the body at the correct temperature
  7. State the function of white blood cells
    To fight against disease
  8. State the function of platelets
    To clot the blood
  9. State the function of red blood cells
    To transport oxygen around the body
  10. Give the differences between arteries and veins
    Arteries carry blood away from the heart whereas veins carry blood to the heart

    Arteries have no valves but veins have valves

    Arteries have a thick wall and a small lumen whereas veins have a thin wall and a large lumen

    The blood pressure in arteries is high whereas in veins the blood pressure is low
  11. State the function of arteries
    To carry blood away from the heart
  12. State the function of capillaries
    They connect (link) arteries and veins
  13. How are capillaries adapted to allow materials to easily pass into and out of them?
    They have thin walls

    The walls are permeable and moist

    There are a huge number of capillaries which provides a large surface area across which materials may be exchanged

    They have a narrow diameter so all blood is in close contact to tissue cells
  14. State the function of veins
    To carry blood to the heart
  15. What are the upper chambers of the heart called?
    Atrium
  16. What are the lower chambers of the heart called?
    Ventricles
  17. What is the function of the vena cava?
    To carry deoxygenated blood (high in carbon dioxide) from the body to the heart
  18. What is the function of the pulmonary artery?
    To carry deoxygenated blood (high in carbon dioxide) from the heart to the lungs
  19. What is the function of the pulmonary vein?
    To carry oxygenated blood (high in oxygen) from the lungs to the heart
  20. What is the function of the aorta?
    It is the largest blood vessel in the body and carries oxygenated blood (rich in oxygen) from the heart to every organ of the body
  21. What are valves?
    The valves consists of flaps that open to let blood flow in one direction as it moves through the chambers of the heart

    Then the valve close to keep blood from flowing backwards into the chamber it just left
  22. Why is the wall of the left side of the heart thicker than the right side?
    Because it has to pump blood to every part of the body

  23. Correctly identify the part of the heart labelled A
    Vena Cava
  24. Correctly identify the part of the heart labelled B
    Right Atrium
  25. Correctly identify the part of the heart labelled C
    Right Ventricle
  26. Correctly identify the part of the heart labelled D
    Pulmonary Artery
  27. Correctly identify the part of the heart labelled E
    Aorta
  28. Correctly identify the part of the heart labelled F
    Pulmonary Vein
  29. Correctly identify the part of the heart labellled G
    Left Atrium

  30. Correctly identify the part of the heart labelled H
    Left Ventricle
  31. State the function of double circulation
    This consists of a circuit pumping blood between the heart and the lungs while at the same time it is pumped through a second circuit between the heart and the rest of the body
  32. Give different things you can do to keep your heart healthy
    Do some exercise every day

    Maintain a healthy weight

    Eat less fatty and salty foods

    Do not smoke or drink

    Eat at least five portions of fruit and vegetables every day

    Reduce stress in your life and make time to relax
  33. What is the normal body temperature of an adult?
    37 degrees celsius
  34. What is a pulse?
    This is when blood is pumped through the arteries causing pressure
  35. State the normal heartbeat rate (pulse rate) of humans
    70 beats per minute
  36. State the effect of exercise on the pulse rate
    Exercise causes the heart and pulse rate to increase because the cells in our body need more food and oxygen and need to get rid of carbon dioxide and heat

What would you like to do?

Home > Flashcards > Print Preview