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31 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Content of the middle mediastinum |
Phrenic nerve Cardiac plexus Great vessles Heart Lung roots Pericardium |
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Fibrosis pericardium |
The phrenic nerve lies on it Connect to the posterior sternum by the sternopericardial ligaments Phrenicopericardial liagament connect the sternocostal part of the diaphragm to rhe periocardium Supply by the internal thoracic artery |
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Serous pericardium |
Lies in the fibrosis pericardium Surround the whole surface of the heart to form the epicardium Between the transverse and oblique sinus Have a visceral and perital surface |
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Transverse sinus |
Superior to the heart Anterior- ascending aorta and pulmonary trunk Posterior- left atrium superior vena cava and pulmonary vein |
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Oblique sinus |
Behind the heart Anterior- left atrium Posterior- fibrous pericardium and esophagus |
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Nerve supply to the pericardium |
Phrenic nerve except visceral layer which is insensitive |
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Blood supply to the pericardium |
Internal thoracic Thoracic artery Musculophrinic artery Pericardiophrinic Bronchial artery |
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Venous drainage to the pericardium |
Azygos veins |
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Position of the heart |
The right side is more anterior and the atriums are to the right of the ventricle Right side- right atrium Inferior/diaphragm- 2/3 left ventricle 1/3 right ventricle Left side/posterior- left atrium Sternocostal surface- right ventricle |
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Surface marking of the heart |
Right 3th coastal cartilage to the 6th costal cartilage 5-8 thoracic ribs Apex- 5th intercostal space at the mid axillary line |
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Formation of the atrioventricular orifices |
Fibrous rings |
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Central fibrous body |
Base at the cusp of the mitral aortic and tricuspid valve |
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Right atrium |
Form the anterior surface of the heart Contain the right auricle left of the SVC Between the SVC and IVC Sulcus terminalis between the SVC and right auricle Crista terminalis- project in the right atrium |
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Coronary sinus |
Above the ticuspid valve to the left of IVC |
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Right ventricle |
Contain the right coronary artery The three semilunar cusps of the pulmonary valve attach at the pulmonary trunk Pulmonary orifices higher than aortic orifices |
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Left atrium |
The four pulmonary veins enters one above the others on the side Smooth wall except the auricle |
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Mitral valve |
Anterior 1/3 between mitral and aortic orifices and posterior cusps 2/3 |
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Aortic orifices |
Guarded by the aortic valve at the entrance of the ascending aorta Three semilunar cusps |
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Lymph to the heart |
Treacheobronchial Brachiocephalic |
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Nerve supply to the heart |
Cardiac plexus |
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Right dominance |
The posterior descending artery supply the right coronary artery |
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Left dominance |
The posterior descending artery is from the circumflex artery |
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Co dominance |
The posterior descending artery is from the right coronary artery and the left circumflex artery |
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Right coronary artery |
Conus artery SA nodal artery 60% of the SAN between aorta Right marginal artery to the left of the right ventricle Posterior descending artery at the apex AV nodal artery Left ventricular artery(right posterior later)
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From the left anterior aortic sinus Between right auricle and left auricle |
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Left coronary artery |
Circumflex artery Left marginal artery SA nodal artery 40% SAN Anterior descending artery Conus artery Diagonal artery |
From the left posterior aortic sinus Between left aurucle and right ventricle |
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Veins to the heart |
Cardiac sinus- grate Middle Small Posterior Oblique Anterior cardiac vein- right atrium Vena cord is minimae- left ventricle |
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Coronary sinus |
Great cardiac vein- accompany by the LAD and circumflex artery Middle cardiac vein- accompany by the posterior descending vein Small cardiac vein- drain in the coronary sinus join the the right marginal artery Posterior cardiac vein- drain left to the middle cardiac vein Oblique vein |
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Pectinate muscles |
True chamber of the heart |
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Location of the AVN |
Left of the coronary sinus |
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Superficial cardiac plexus |
Cardinal branches from the superior cervical ganglion Inferior cervical ganglion left vagus nerve |
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Brachiocephalic vein |
From the subclavian and internal jugular |
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