Principles of Sonography
Terms
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copy deck
- location of the heart
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middle mediastinum
anterior to esophagus and descending aorta, surrounded by lungs and covered by manubrium anterioly, 2nd-6th cartilages, sits diagnolly with apex to the left - identify the base and apex
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base cranial end angled to the right and posterior
apex caudel end, forms a point to the left of midline and is inferior and anterior - what are the 3 wall layers of the heart
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endocardium-innermost
myocardium- thickest middle layer, makes up muscle mass
pericardium-outer layer - 4 chambers of the heart
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Left atrium
Right atrium
Left ventricle
Right ventricle
atria recieve blood and are seperated by the interatrial septum
ventricles pump blood and are seperated by interventricular septum - systole
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ventricle contraction
corresponds with the QRS on the EKG, semilunar valves open - diastole
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atrial systole corresponds to P-wave on EKG ventricular relaxation and filling
atrioventricular valves open - deoxygenated blood
- when in RA, RV, IVC, SVC, coronary sulcus, pulmonary artery
- oxygenated blood
- lungs, pulmonary veins, LA, LV and aorta
- Sequence the 5 components or pathways of the electrical conduction system through the normal heart
- AV node- SA node- Bundle of HIS- purkinje fibers- Left and Right bundle branches
- Identify the major cardiac windows utilized during a routine cardiac ultrasound
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parasternal
apical
suprasternal
subcostal - Trace the circulation of the blood through the normal heart and the great vessels.
- SVC, IVC, Coronary Sulcus,RIGHT ATRIUM,TRICUSPID VALVE,RIGHT VENTRICLE,PULMONARY VALVE,PULMONARY ARTERY,LUNGS,PULMONARY VEINS,LEFT ATRIUM,BICUSPID VALVE,LEFT VENTRICLE,AORTIC VALVE,AORTA,Systemic System, Capillaries & Veinsā¬¦