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Circulatory system

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  • What separate the heart into two sides?
    the septum
  • What is the function of white blood cells
    Protecting our body from infections
  • Pulmonary Arteries carry deoxygenated blood from
    heart to lungs
  • Period of contraction of the ventricles of the heart
    systole
  • Why does the left ventricle have a thicker wall?
    the left ventricle pumps blood for all the parts and tissues of the body and hence, need thicker walls for more work that needs to be done
  • What is D on the heart diagram?
    Right Atrium
  • Blood flows from the right atrium tot he right ventricle through the
    tricuspid valve
  • Thickest of all blood vessels
    arteries
  • Pulmonary circulation is the movement of blood between the heart and the
    the lungs, and back.
  • A substance in red blood cells that combines with and carries oxygen around the body
    haemoglobin
  • The main role of the circulatory system is to deliver needed materials such as
    oxygen and nutrients
  • When you get a cut on your finger, what part of the blood helps clot the blood?
    Platelets or thrombocytes
  • What is the function of red blood cells
    Transport oxygen
  • The name of the vein that returns blood from the lower body.
    Inferior Vena Cava
  • On the diagram, what brings blood to the heart from the lungs?
    C
  • Waste materials such as ____ are carried by the circulatory system
    CO2
  • How many chambers does the heart have?
    4
  • Which blood vessels are the site of exchange of substances between the blood and the body?
    capillaries
  • Period of relaxation of the heart muscle
    diastole
  • The heart muscle itself is called
    myocardium or cardiac muscle
  • How does blood get from the heart to the lungs?
    Pulmonary Veins
  • Blood entering the left atrium is
    oxygenated
  • Pulmonary veins transport oxygen rich blood from
    lungs to heart
  • Which blood vessels contains valves
    veins
  • Name two blood vessels that enter the heart
    Superior vena cava and inferior vena cava. Pulmonary veins
  • Blood vessel with highest pressure
    arterie
  • Heart valves prevent ...
    backflow
  • What is the liquid portion of the blood called?
    Plasma
  • What is F on the heart diagram?
    Mitral valve
  • Systole causes the ejection of blood into
    aorta and pulmonary arteries
  • the pThe pale yellow liquid that forms 55% of human blood and contains the blood cells
    plasma
  • What does the Vena Cava do?
    Returns deoxygenated blood from the body to the right atrium.
  • What does the red blood cells pickup from the lungs to carry to the rest of the body?
    Oxygen
  • Blood returning from the lungs enters the _____ of the heart
    Left atrium
  • The ventricles are
    lower chambers of the heart that pump blood to lungs and body
  • The function of capillaries is to
    exchange some elements (O2,CO2, nutrients...) between the blood and tissues.
  • Systemic circulation is the movement of blood between the heart and
    all the other parts of the body and back again.
  • Which blood vessels carry blood back to the heart?
    veins
  • Arteries branch off into tiny blood vessels called
    capillaries
  • The heart chamber that receives blood from the venae cavae is the
    right atrium
  • How are arteries and veins connected?
    By a system of capillaries.
  • What is B on the heart diagram?
    Aorta
  • Controls the flow of blood through the heart by opening and closing.
    heart valves
  • Name two blood vessels that leave the heart
    Pulmonary artery, Aorta
  • Which blood vessels carry blood away from the heart?
    arteries
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