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Cardiovascular System


Cardiovascular System By: Haley Groesbeck & Kayla Brice Functions Transport- The nutrients, oxygen, and hormones to cells throughout the body and removal of wastes ... – PowerPoint PPT presentation

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Title: Cardiovascular System

Cardiovascular System
  • By Haley Groesbeck Kayla Brice

  • Transport-
  • The nutrients, oxygen, and hormones to cells
    throughout the body and removal of wastes like
    carbon dioxide, nitrogenous wastes, and heat.
  • Protection-
  • Protects the body with white blood cells,
    antibodies, and complement proteins. These
    circulate in the blood and defend the body
    against microbes and toxins.
  • Clotting mechanisms help protect the body from
    blood loss after injuries.
  • Regulation-
  • The body temperature, fluid pH, and water
    content of cells.

  • Major organs of our system

  • Its a muscle that is big as your fist.
  • The heart pumps 24 hours a day without getting
  • The heart muscle is special because of what it
    does. The heart sends blood around your body. The
    blood provides your body with the oxygen and
    nutrients it needs. It also carries away waste
    that is in your body.
  • Your heart is sort of like a pump, or two pumps
    but together to make one. The right side of your
    heart receives blood from the body and pumps it
    to the lungs. The left side of the heart does the
    exact opposite It receives blood from the lungs
    and pumps it out to the body.
  • Before each beat, your heart fills with blood.
    Then its muscle contracts to squirt the blood
    along. When the heart contracts, it squeezes out
    the blood. Your heart does this all day and all
    night, all the time.

Blood Vessels
  • Tubes that blood flows through.
  • Three different kinds of blood vessels
  • -arteries
  • -veins
  • -capillaries
  • Blood vessels are kind of like freeways. Small
    arteries and veins are like back roads.
  • Major veins and arteries are more like super
    highways. They carry blood across larger areas
    and to other organs throughout the body.

  • Delivers nutrients and oxygen to all of our cells
    and removing carbon dioxide and waste.
  • Made of different kinds of cells.
  • Every cell in the body gets its nutrients from
  • Blood is a mixture of two components cells and
  • The adult human body contains approximately 5
    liters of blood it makes up 7 to 8 percent of a
    person's body weight. Approximately to 3 liters
    of blood is plasma and the rest is the cellular
  • Plasma is the liquid portion of the blood. Blood
    cells like red blood cells float in the plasma.
  • Blood is about 78 percent water.
  • Blood takes about 20 seconds to circulate
    throughout the entire vascular system.

  • Carry blood away from the heart.
  • The hollow center where blood flows through is
    called the lumen.
  • Walls of arteries are dense, elastic and
  • The biggest artery is called the aorta.
  • This artery handles blood pumped at high forces
    with each and every heartbeat.
  • The rubbery walls help to ensure that the artery
    doesnt burst under all of the pressure.

  • Veins carry blood towards the heart.
  • Most veins carry deoxygenated blood from the
    tissues back to the lungs.
  • Vein color is determined in large part by the
    color of venous blood, which is usually dark red
    as a result of its low oxygen content. Veins
    appear blue because the subcutaneous fat absorbs
    low frequency light.
  • Venous insufficiency is the most common disorder
    of the venous system, and is usually called
    spider veins or varicose veins. Treatments can
    include radiofrequency ablation, vein stripping,
    lasers, or compression.
  • Postphlebitic syndrome is venous insufficiency
    that develops following deep vein thrombosis.
  • Deep vein thrombosis is a condition where a blood
    clot forms in a deep vein.
  • Thrombophlebitis is an inflammatory condition of
    the veins related to blood clots.

  • Tiny blood vessels connect arteries to veins.
  • The walls are so thin that oxygen, nutrients, and
    wastes can pass through them.
  • Capillaries are in the lungs, for example, it
    allows oxygen from the lungs to enter the blood.
  • Capillaries are the smallest blood vessel. They
    serve to distribute oxygenated blood from
    arteries to the tissues of the body and to feed
    deoxygenated blood from the tissues back into the
  • Capillaries are from about 5-10 microns in
    diameter. Capillary walls are thin. Oxygen,
    carbon dioxide, nutrients and wastes are
    exchanged through the thin walls.

Red blood cells
  • Red blood cells give blood its color.
  • They carry oxygen to other cells in the body.
  • One drop of blood contains millions of blood
    cells which constantly are traveling around your
  • When they are traveling throughout your body they
    are delivering oxygen and removing wastes.
  • If red blood cells didn't have these functions,
    then your body would slowly die.
  • What makes these cells red is because they
    contain a protein chemical called hemoglobin.
  • The element iron is found in hemoglobin and it is
    great to transport carbon dioxide and oxygen.
  • The average life of a red blood cell is 120
  • When blood passes through the lungs oxygen
    molecules attach to the hemoglobin.
  • When blood passes through the tissue the
    hemoglobin releases the oxygen to other cells.

White blood cells
  • Help defend the body against illness.
  • When a white blood cell sees a germ it has
    different ways to attack it 1. Some will
    produce protective antibodies that will overpower
    that germ. 2. Others will surround and devour
    the bacteria.
  • A white blood cell has a short live span, it can
    live from a few days to a few weeks.
  • Just one drop of blood can contain anywhere from
    7,000 to 25,000 white blood cells at a time.
  • If any invading infection will fight back and
    persist, that number will increase.
  • When there is a significant amount of white blood
    cells, then that means that person has leukemia,
    a type of cancer in the blood.
  • A leukemic patient will have up to 50,000 white
    blood cells in just one drop.

Diseases that affect this system
  • Angina
  • Atherosclerosis
  • Cardiac Arrhythmia
  • Cardiomyopathy
  • Chronic Venous Insufficiency(CVI)
  • High Blood Pressure
  • High Cholesterol
  • High Homocysteine (Hyperhomocysteinemia)
  • High Triglycerides
  • Hypoglycemia
  • Insulin Resistance Syndrome(IRS)
  • Mitral Valve Prolapse(MVP)
  • Myocardial Infarction(MI, Heart Attack)
  • Sickle Cell Anemia
  • Leukemia
  • Autologous Blood transfusion

What would happen to our bodies if the
cardiovascular system failed
  • Without the heart to pump blood through your
    body you would not be able to sustain life and
    you would die. ?
  • Also the blood would not be able to get to your
    brain and so you could go unconscious and end up
  • If plasma built up around the arteries they
    would fail because they would not get enough
    oxygen to survive. So obviously you would die
    from anything!!

Relationships to other systems
  • One system that is related to the cardiovascular
    system is the Lymphatic system. It rids the body
    of waste products, protects are body from harmful
    effects of getting sick.
  • Another system is the nervous system. Its what
    recognizes signals, and controls are actions. Our
    brain then recognizes these signals and sends
    them to the adrenal glands.

Body systems that work with the cardiovascular
  • 1. The respiratory system works together with
    the cardiovascular system because they both work
    towards the same goal. They both get oxygen to
    tissue and get carbon dioxide out. The
    respiratory system works to get oxygen to the
    blood and removing carbon dioxide.
  • 2. The other systems are the nervous system
    and endocrine system. When we exercise our brain
    (nervous system) recognizes this and signals the
    adrenal glands (endocrine system) to release
    adrenaline to make your heart (cardiovascular
    system) pump faster to supply more blood/oxygen
    to your muscles in order that you achieve the
    task, whether fight. The systems work together to
    maintain homeostasis. If there is stress on one
    system, other systems kicks in to correct the

Disorders and treatment
  • Diabetes
  • Atherosclerosis
  • The major goal in treating diabetes is to
    minimize any elevation of blood sugar without
    causing low levels of blood sugar. Some diabetes
    are treated with insulin , exercise , and a
    diabetic diet . Other diabetes are treated first
    with weight reduction, a diabetic diet , and
    exercise. When these measures fail to control the
    elevated blood sugars, medications are used. If
    medications are still insufficient, treatment
    with insulin is considered.
  • Weight reduction and exercise are important
    treatments for diabetes. Weight reduction and
    exercise increase the body's sensitivity to
    insulin, helping to control blood sugar
  • Atherosclerosis treatment usually begins with
    lifestyle changes, such as eating well,
    exercising regularly, quitting smoking, and
    maintaining a healthy weight. In addition,
    medications may be prescribed, such as ACE
    inhibitors. In advanced cases, atherosclerosis
    treatment may require special procedures such as
    angioplasty or open heart surgery to open an
    artery and make the blood flow.
  • Other
  • According to the American Heart Association, over
    80,000,000 Americans have one form or another of
    cardiovascular disease. Some of the most common
    cardiovascular diseases include "heart disease,"
    "hypertension," "atherosclerosis," "diabetes" and
    "peripheral artery disease" or "PAD."

Sites we went to.
  • Functions of the Cardiovascular System. Web. 10
    Jan. 10. lthttp//
  • Google images. Web. 11 Jan. 10.
  • Web. 10 Jan. 10.
  • Web. 10 Jan. 10.
  • White blood cells. Web. 10 Jan. 10.
  • Web. 12 Jan. 10.
  • Web. 10 Jan. 10. lthttp//
  • How does the cardiovascular system depend on
    other body systems? Web. 12 Jan. 10.
  • Atherosclerosis Treatment. Web. 25 Jan. 2010.
  • Diabetes treatments. Web. 25 Jan. 2010.

Sites continued.
  • How Does the Cardiovascular Systems Depend On
    Other Body Systems. Web. 24 Jan. 2010.
  • Kaylas Aunt Michelle who is a Nurse
    Practitioner. Yay go aunt!!

  • THE END!!