Term
| what provides blood supply and innervation for the fibrous pericardium? |
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Definition
internal thoracic (incl pericardiacophrenic and musculophrenic) and inferior phrenic arteries and aorta.
innervated by phrenic nerve. |
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Term
| what is cardiac tamponade, what are the signs, and what can be done? |
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Definition
collection of blood in the pericardial cavity.
signs are jugular vein distention, muffled heart sounds, and narrowing sys/dias BP difference.
can do pericardiocentesis to drain fluid. |
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Term
what is the coronary sulcus?
what are the other two sulci? |
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Definition
it encircles the heart, dividing atria from ventricles.
other two - anterior and posterior interventricular sulci |
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Term
| what are the two sinuses in the heart? |
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Definition
| transverse pericardial sinus (separates main arteries and veins) and oblique pericardial sinus (between pulm veins and heart tissue) |
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Term
| what branches off the right coronary artery? |
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Definition
| branch to the SA node, marginal branch, posterior interventricular artery |
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Term
| what branches off the left coronary artery? |
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Definition
| the anterior interventricular artery (aka LAD), circumflex branch, and marginal |
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Term
| what veins run with the LAD, the posterior interventricular, and the posterior aspect of the right coronary artery, respectively? |
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Definition
| the great cardiac vein, the middle cardiac vein, and the small cardiac vein |
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Term
| what is in the right atrium? |
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Definition
| interatrial septum, fossa ovalis (closed and surrounded by limbus ridge), sinus venarum (smooth), pectinate muscles, and crista terminalis; tricuspid valve and opening of coronary sinus |
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Term
| what is in the right ventricle? |
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Definition
| supraventricular crest, septal limb and moderator band (from septal limb to anterior papillary muscle), trabeculae carneae, 3 papillary muscles, chordae tendineae, conus arteriosus leading to pulmonary valve |
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Term
| what is in the left atrium? |
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Definition
| pulmonary veins, valve for foramen ovale (closed), mitral (biscupid) valve |
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Term
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Definition
| necrosis caused by ischemia, caused by obstruction of blood supply |
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Term
| what types of infarcts can you have? |
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Definition
transmural - traverses whole wall from endo to epicardium
subendocardial - limited to interior 1/3 of ventricular wall |
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Term
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Definition
| SA node --> AV node --> R or L AV Bundle of His --> Purkinje fibers |
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Term
| what innervates the heart? |
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Definition
cardiac plexus from the auto nervous system.
include sympathetic (visceral motor to increase HR and sensory for pain) and parasympathetic (from vagus nerve, visceral motor to lower HR and visceral sensory to trasmit cardiac reflexes) |
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