The Cardiovascular System

The Cardiovascular System Normal Anatomy * The shoot is located in the remain side of the mediastinum * Consists of Three layers- visceral pericardium, myocardium and endocardium * The epicardium covers the outer surface of the heart * The myocardium is the mark muscular layer of the heart * The endocardium lines the domiciliate and the valves * The layer that covers the heart is the PERICARDIUM * at that place be twain parts- parietal and visceral pericardium * The space in the midst of the deuce pericardiac layers is the pericardial space * The heart similarly has four chambers- two atria and two heart ventricles * The remaining atrium and the chasten atrium * The left ventricle and the right ventricle The heart chambers are guarded by valves * The atrio-ventricular valves- angulate and bicuspid * The semi-lunar valves- Pulmonic and aortic valves The origination supply of the heart comes from the coronary thrombosis arteries 1. Right coronary arterial blood vessel supplies the accountability atrium and RIGHT ventricle, lacking(p) portion of the leftover ventricle, the empennage septal environ and the two nodes- AV (90%) and SA node (55%) 2.

leftfield coronary artery- branches into the lumberjack and the circumflex branch * The cranny supplies blood to the preliminary jetty of the LEFT ventricle, the anterior septum and the elevation of the left ventricle * The CIRCUMFLEX branch supplies the left atrium and the posterior LEFT ventricle The CONDUCTING system of rules OF THE HEART Consists of the * 1. SA node- the pacemaker * 2. AV node- slowest conduction * 3. cumulation of His branches into the Right and the Left clunk branch * 4. Purkinje fibers- fastest conduction The meat sounds * 1. S1- run-down to closure of the AV valves * 2. S2- ascribable to the closure of the semi-lunar valves * 3. S3- due to increase ventricular filling * 4. S4- due to emphatic atrial contraction Heart rate * Normal run international is 60- c beats per minute * Tachycardia is greater than 100 bpm * Bradycardia is less than 60...If you want to train a full essay, order it on our website: Ordercustompaper.com

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