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43 Cards in this Set
- Front
- Back
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Superior mediastinum contents
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Thymus
Great vessels Vagus and phrenic Esophagus Trachea |
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Anterior inferior mediastinum
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Thymus
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Middle inferior mediastinum
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Heart
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Posterior inferior mediastinum
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Thoracic aorta
Esophagus Thoracic duct |
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Pericardium layers
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Fibrous
Two layers of serous |
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Potential space in pericardium
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Between serous layers
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Pericardiocentesis
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5th intercostal space
Under xiphoid process |
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Anterior of heart (chamber)
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Right ventricle (location in heart)
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Posterior of heart
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Left atrium (location in body)
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Atrial appendages
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Each atrium has one
Remnant of embryonic atrium |
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Crista terminalis
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Ridge between pectinate muscles (inside of auricle) and smooth wall
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Fossa Ovalis
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Remant of foramen ovale
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Sinoatrial node
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Junction of crista terminalis and superior vena cava
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Trabeculae carnae
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Irregular surface of ventricular wall
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Chordae tendinae
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Ligaments of valve
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Moderator band
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Connect septum to anterior papillary muscle
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Stenotic valves
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Increase pressure to eject blood from previous chamber
Increase workload of heart Can be caused by atherosclerosis |
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Regurgitant (defintion, symptom, cause)
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Increase workload of heart
Blood is left behind Can be caused by atherosclerosis |
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Lub-Dub (cause)
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Lub is the closing of the AV valves; beginning of systole
Dub is closing of semilunar valves; beginning of diastole |
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S1 (heart sounds)
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Beginning of systole
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S2 (heart sounds)
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Beginning of diastole
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Auscultation of pulmonary valve
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Left of sternum in 2nd intercostal space
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Auscultation of aortic valve
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Right of sternum in 2nd intercostal space
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Auscultation of tricuspid valve
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Left of sternum in 5th intercostal
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Auscultation of mitral valve
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Mid-clavicular line in 5th intercostal
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Branches of RCA
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SA nodal
Right marginal AV nodal Posterior interventricular descending |
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Branches of the LCA
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Left anterior descending
Circumflex branch Posterior ventricular branch |
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Supply for left ventricle (coronary arteries)
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Posterior ventricular branch (from LCA)
Posterior interventricular branch LAD |
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Heart dominance (definiton)
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Artery that branches to posterior interventricular and AV node
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Veins of right ventricle
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Thebesian veins
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Path of great cardiac vein
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Anterior interventricular artery (LAD) (vein path)
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Path of middle cardiac vein
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Posterior interventricular artey (vein path)
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Path of small cardiac vein
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Right marginal artery (vein path)
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AV Node
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Slows down the heart rate
All atrial depolarization bottlenecks here |
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Bundle of His
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Carries conduction from AV node to top of septum
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Perkinje fibers
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Terminal branches of conduction system
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Venous system circulation (forces)
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Negative pressure of empty chambers during diastole
Muscle contraction (during normal movement) Respiration (increase abdominal pressure and decrease thoracic pressure) |
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Lymph return (2 ducts)
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Thoracic duct
Right lymphatic duct |
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Thoracic duct drainage area
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Lower extremities
Abdomen Left half of upper body Drains to left subclavian and left internal jugular |
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Right lymphatic duct drainage area
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Right half of upper body
Drains to right subclavian and right internal jugular |
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AV Node Origin
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Dependent on heart dominance
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Interventricular septum blood supply (for each dominant heart)
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Right dominant heart - both CA
Left dominant heart - only LCA |
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Aortic regurgitation
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Backflow during diastole
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