Unit 8 Vocabulary
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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| Intrinsic Regulation | Within the heart; Force of contraction related to the amount of stretch.
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| Extrinsic Regulation | Hormonal or nervous stimulation; Fight or Flight Response.
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| Cardiac Output | Amount of blood pumped per minute.
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| Epicardium | Serous membrane forming outer surface of heart; simple squamous.
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| Myocardium | Thick middle layer; cardiac muscle cells and produces contraction of heart.
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| Endocardium | Inner surface of heart chambers; composes valves.
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| Superior Vena Cava | Large vein carrying blood from the upper body to the right atrium.
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| Inferior Vena Cava | Large vein carrying blood from the lower body to the right atrium.
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| Pericardial Cavity | Space surrounding heart, located between visceral and parietal pericardium.
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| Pericardial Fluid | Located in pericardial cavity, and produced by serous pericardium; reduces friction when heart moves.
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| Coronary Sulcus | Separates atria from ventricles; extending around the heart.
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| Pulmonary Veins | Blood vessels that carry blood from the lungs back to the left atrium.
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| Pulmonary Arteries | Blood vessels carrying blood from the pulmonary trunk, extending from the right ventricle, to the lungs.
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| Systemic Circulation | Part of the cardiovascular system which carries oxygenated blood away from the heart to the body, and returns deoxygenated blood back to the heart.
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| Intercalated Disks | Cross-bands that separate the opposing ends of cardiac muscle cells.
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| Innervations of Heart | The heart is innervated by parasympathetic and sympathetic fibers.
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| (SA) Sinoatrial Node | Located near the opening of the SVC. It is the pacemaker of the heart.
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| Refractory Period | The rest period of the heart, when ventricles are in diastole.
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| Purkinje Fibers | Autorhythmic cells that wind their way through the ventricles.
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| Waves of Electrocardiogram | P Wave, QRS, T Wave
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| Systolic | Contraction
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| Diastolic | Relaxation or Filling
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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