to help you study
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Endocardium | Definition: Is a smooth layer of cells that lines the inside of the heart and is continuous with the inside of blood vessels.
Function: Allows for smooth blood flow.
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| Pericardium | Definition: Is a double layered membrane, or sac, that covers the outside of the heart.
Function: Lubricating fluid that that prevents friction and damage to the membrane as the heart beats or contracts
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| Myocardium | Definition: The thickest and most muscular layer, in the middle.
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| Diastole | Definition: The brief period of rest during the heart beat cycle
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| Systole | Definition: a ventricular contraction during the heart beat cycle
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| Arterioles | The smallest branches of arteries that join with capillaries.
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| Veins | are blood vessels that carry blood bact to the heart.
carries deoxygenated blood ( except for the pulminary veins)
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| Arteries | carry blood away from the heart. carries oxygenated blood except in the pulminary artery
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| capillaries | connect arterioles venules ( small branches of veins) they have thin walls that allow oxygen and nutrients to enter the cells, and carbon dioxide and metabolic processes to enter the capillaries
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| plasma | what blood is made up of, 90% water, with several dissolved, or suspended, substances. contains blood proteins/nutrients
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| Hemoglobin | complex protein composed of the protein molecule called globin and the iron compound heme. it carries both oxygen and CO2
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| Aorta | the main artery of the body that supplies oxygen to the brain, arms, torso, and legs, supplies oxygenated blood
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| Erythrocytes | red blood cells, produced in the red bone marrow. main function is to carry oxygen and contains hemoglobnin
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| Thrombocytes | pieces of cells that lack nuclei, formed in the bone marrow. they are important beacause they help clot, which helps stop excessive bleeding. they collect at the cut and form a sticky plug and release seratonin (scab)
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| Leukoctes | WBC that are formed in the bone marrow, and lymph tissue. usually last 3-9 days. their main function is to prevent and fight infection
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| Hemophilia | hereditary blood disorder where the body doesnt have enough von willebrand protein that helps with clotting, therefore blood does not clot causing excessive bleeding
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| aneurysm | a sac like formation on an artery wall that is filled with blood, if it ruptures it can cause death, it is caused by disease defects and injuries
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| leukemia | a malignant disease of the bone marrow or lymph tissue. it results in the in a high number of immature white blood cells.
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| phlebotomist | is an integral member of the medical laboratory team whose primary function is the collection of blood samples from patients by venipuncture or microtechniques
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| cardiologist | deals with disorders of the heart. specialize in diagnosing and treating diseases that relate to the cardiovascular system
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| hematologist | someone who studies blood, treats disease of blood, bone marrow and lymphatic system. they deal with anemia, clotting, ect.
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| electrocardiogram | a record of electrical activity in the heart, is used to diagnose disturbances of conduction, myocardial infarction,metabloic disorder, ect.
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| # of cells in cubic ml of blood | 4.5- 5.5 million : erythrocytes
5,000-9,000: luekocytes
thrombocytes: 250,000-400,000
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| blood type giving | A,B, AB, O.
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| conductive pathway | sinoatrial node, atrialventicular nodes, bundle of his, right/ left branch, and purkinjie fibers
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| amount of blood in the body | adult: 4-6 qt
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| red color of blood | is oxygenated blood
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