MLA week 1 Tourniquet/Heart
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| where on the arm should a tourniquet be placed | 6" above the antecubital fossa
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| A tourniquet can only stay in place for how long | 1 minute / 60 seconds
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| definition of a Phlebotomists | Phlebo = vein Tome/tomy = incision Ists = specialist
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| four chambers of the heart | right artium, left artium, right ventricle and left ventricle
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| five major blood vessels | superior vena cava - inferior vena cava - plumonary artery - pulmonary veins - aorta
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| how many valves are in the heart and what are they | 4; tricuspid = RA to the RV; pulmonic = RV to the pulmonary arterymitral = LA to the LVaortic = LV to the aorta
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| the tricuspid and mitral valves are also called the ... | atrioventricular valves = between atria and the ventricles
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| the blood that flows into the atria is passive filling what % | 70
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| what divides the right and left chambers of the heart | the septum
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| The thin innermost layer of the heart (lining the chambers) | Endocardium
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| the pure muscle layer of the heart that is responsible for the contraction | myocardium
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| the thin protective outer layer of the heart | epicardium
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| the double layer "heart sack" is called what? And the fluid inside of it? | pericardium, and the serous fluid
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| ANS | Autonomic Nervous System
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| SNS and what it is | Sympathetic Nervous System; speeds up the heart rate and increases blood pressure. Known as the "Fight or Flight" response to stress, exertion or fear
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| PNS and what it is | Parasympathetic Nervous System; slows the heart rate and decreases the blood pressure, normally happens when your sleeping.
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| RCA and what part of the heart does it feed | Right Coronary Artery; feed the right ventricle and surface of the left inferior ventricle
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| LAD and what part of the heart does it feed | Left Anterior Descending (coronary artery); anterior surface of the left ventericle
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| LCX and what part of the heart does it feed | Left Circumflex (coronary artery); feeds the lateral wall of the left ventricle
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| Which chamber of the heart has the thickest walls | Left ventricle
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| Which valve opens when the right ventricle contracts | Pulmonic
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| Contractions of the heart is known as | Systole
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| Another name for the Tricuspid and Mitral valves | Atrioventricular valves
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| the three layers of the heart and where they are | Endocardium - innermost layer Myocardium - the thickest layer of the wall Epicardium - the thin outer protective layer
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| Systole | contraction of the heart muscle
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| Diastole | relaxation of the heart muscle
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| Pacemaker of the heart | SA node
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Created by:
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