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Cardiovascular%20Unit%20(Day%203)

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Cardiovascular Unit (Day 3) Bell Ringer: On a piece of paper, write your name and today s date Do not use your notes!!! Write the process of how bad blood ... – PowerPoint PPT presentation

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Title: Cardiovascular%20Unit%20(Day%203)


1
Cardiovascular Unit (Day 3)
  • Bell Ringer
  • On a piece of paper, write your name and todays
    date
  • Do not use your notes!!!
  • Write the process of how bad blood becomes
    good blood. (From yesterdays notes)
  • Include all the chambers, valves, arteries,
    veins, and lungs.

2
Bell Ringer Answer
  • Deoxygenated blood goes through the Vena Cava,
    the largest veins in the body into the right
    atrium, the upper right chamber of the heart. The
    right atrium squeezes blood through the tricuspid
    valve filling the right ventricle, the lower
    right chamber of the heart. The right ventricle
    contracts and sends the blood through the
    pulmonary valve into the pulmonary arteries which
    carry blood to the lungs where, when you breathe,
    the blood loses carbon dioxide and picks up
    oxygen. The pulmonary veins carry oxygenated
    blood back to the heart into the left atrium, the
    upper left chamber of the heart. The left atrium
    contracts and sends blood through the mitral
    valve filling the left ventricle, the lower left
    chamber of the heart. The left ventricle pumps
    the blood through the aortic valve into the
    aorta, the largest artery in the body. The aorta
    branches off into numerous smaller arteries that
    carry oxygenated blood to the rest of the body
    The body takes the oxygen out of the blood and
    uses it in your body's cells. It all happens in
    less than a minute.

3
Blood
  • The average adult has approximately 5 liters
    (about 10 pints) of blood.
  • Blood is made up of both liquid and solid
    components the liquid portion is called plasma,
    while the solid portion consists of red blood
    cells, white blood cells, and platelets.

4
Blood
  • Approximately 55of the total volume of blood is
    plasma. The other 45 is made up of red blood
    cells, white blood cells, and platelets, which is
    suspended in plasma.
  • Plasma is the liquid that holds blood cells and
    platelets in suspension. Though plasma is
    approximately 92 water, it also contains a
    complex mixture of proteins, vitamins, and
    hormones.

5
Blood
  • Platelets are the smallest parts of the blood.
  • Platelets are fragments of cells that are less
    than half the size of red blood cells.
  • Platelets help repair blood vessels by adhering
    to damaged walls and help to trigger blood
    coagulation (or clotting), which prevents
    bleeding and blood escaping from the blood
    vessel.
  • Without blood platelets, you would bleed to
    death. When the human body loses a little bit of
    blood through a minor wound, the platelets cause
    the blood to clot so that the bleeding stops.

6
Red Blood Cells
  • Red blood cells carry oxygen from the lungs to
    all the body parts.
  • Red blood cells make up over 99 of your blood
    cells.
  • Blood gets its red color from the protein
    hemoglobin within the red blood cells.
  • Hemoglobin enables red blood cells to transport
    oxygen around the body. When hemoglobin combines
    with oxygen, it forms a bright red compound
    called oxyhemoglobin when oxygen is released,
    the compound darkens and becomes deoxyhemoglobin.

7
Hemoglobin
  • Hemoglobin enables red blood cells to transport
    oxygen around the body.
  • When hemoglobin combines with oxygen, it forms a
    bright red compound called oxyhemoglobin
  • when oxygen is released, the compound darkens and
    becomes deoxyhemoglobin.

8
White blood cells
  • White blood cells main function is to destroy
    invading pathogens.
  • White blood cells are the infantry behind your
    body's defense against infection.
  • They protect your body from disease by either
    eating bacteria or producing substances that
    destroy infectious particles.

9
Components of Blood Video Clip
10
There are four types of blood
  • A
  • B
  • AB- Universal recipient
  • O-O-positive is the most common type
  • (Universal Donor)

11
Blood Vessels
  • The heart needs helpers to make sure the blood
    moves all over, so it uses blood vessels, which
    are like pipes that carry the blood around the
    body.

12
Three kinds of blood vessels
  • Arteries carry oxygen-rich blood away from the
    heart
  • Veins carry deoxygenated blood from the body back
    to the heart
  • Capillaries are extremely small blood vessels
    that surround and nourish tissue cells. Oxygen
    and nutrients from the blood pass through the
    capillary walls and the wastes from the cells
    move into the blood through the capillary walls.
    Capillaries are 50 times smaller than a human
    hair.

13
Interesting Fact
  • If you lined up all the blood vessels in your
    body end to end, they would wrap around the earth
    three times and still have some wrapping left to
    do!

14
Blood Vessels Video Clip
15
  • The End!!
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