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| ("around the heart") is a triple-layered fluid-filled sac that surrounds the heart. |
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| ("muscle heart") is the muscular wall of the heart and consists mainly of cardiac muscle |
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| is an innermost, thin, smooth layer of epithelial tissue that lines the inner surface of the heart chambers and valves. |
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| capillaries, arteries, veins |
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| elastic, muscular tubes that carry the blood from the left ventricle of the heart to the capillaries. |
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| arteries are 3 layers thick |
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| tunica intima (endothelium), tunica media(thick), tunica externa(fibrous conn tissue) |
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| Single layer of endothelium |
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Provides a smooth surface to decrease resistance to blood flow.
Only tunic made of capillaries |
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| Bulky middle coat, containing smooth muscle and elastin |
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| Only tunic tht plays an active role in blood pressure regulation |
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| adventitia- supporting, protective coat |
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| The blood flow through the capillaries is regulated by a _________, a ring of muscle, that contracts to control the flow of blood through the capillaries |
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Definition
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| What are the components of blood? |
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22 percent solids and 78 percent water-
(plasma) |
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| - carry oxygen from the lungs to the rest of the body. |
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| - help fight infections and aid in the immune process. |
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Carbohydrates.
Proteins.
Hormones |
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Oxygen.
Carbon dioxide.
Nitrogen |
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| Plasma, in which the blood cells are suspended, includes: |
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Definition
| RBC's, WBC's, Fat Globules, chemical substances, platelets, gases, |
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| Blood has 2 general functions |
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Definition
1) Protection
2) Transportation |
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| Blood is classified as _____ tissue. |
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Definition
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| Three parts of blood are: |
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| Non-living matrix, fibers, and cells |
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| The shape of R.B.C's are: |
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| The O2 carrying molecule is called? |
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| The disease resulting from a loss of RBC's is |
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| The most abundant WBC is ? |
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| Another name for platelets is? |
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| - located between the right atrium and the right ventricle. |
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| - located between the right ventricle and the pulmonary artery |
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| - located between the left atrium and the left ventricle. |
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| - located between the left ventricle and the aorta. |
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| lowest pressure to which blood pressure falls between contractions of the ventricles. |
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| The peak blood pressure when ventricles contract. |
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| total amount of blood being pumped by the heart over a particular period of time. |
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| The whole sequence of events that produces an heart beat and normally takes place in less than one second. The atria (see ATRIUM) contract together and force the BLOOD into ventricles (DIASTOLE). These then also contract (SYSTOLE) and blood exits the heart and is pumped around the body |
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| The amount of blood the heart can pump out in one beat. Prolonged aerobic exercise can increase stroke volume, which frequently results in a slower heart rate |
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Definition
| The condition of having a slow heartbeat, defined as under 60 beats per minute for an adult |
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| abnormally rapid heartbeat (over 100 beats per minute |
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| Pain or discomfort in the chest due to inadequacy of blood supply to meet oxygen demands of the myocardium, commonly precipitated by effort or emotion. |
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| death of the heart muscle due to insufficient blood supply, usually due to clot obstructing blood flow (lay term: heart attack) |
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| any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies |
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| The process by which blood flow is stopped. This is another word to describe the processes of clot formation |
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| What hormone regulates rbc production? |
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| 1)Aortic 2)Mitrol 3)Pulmonary 4)Tricuspid |
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| How is blood type determined? |
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Definition
| genetics/ ABO blood antigens present on redblood cells |
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