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Title
Circulatory system
Writer
Acuworld
View
687
Date
2020-07-15 08:27:47
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="FONT-WEIGHT: bold; FONT-SIZE: 15pt; FONT-FAMILY: Arial">Circulatory System</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Arial"><?xml:namespace prefix = o /><o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">1. Circulation<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Systemic circulation: left ventricle - aorta - arteriole - capillary vessel - inferior and superior vena cava<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> - right atrium<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 72pt; TEXT-INDENT: -36pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">Coronary circulation: superior vena cava - right atrium - pulmonary vein - right ventricle - inferior vena cava <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Hepatic vein: inferior vena cava<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 36pt; TEXT-INDENT: -36pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">2. Pulmonary circulation: pulmonary truck - pulmonary arteries - lungs (via pulmonary artery) - pulmonary capillaries - pulmonary veins<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">Aorta: ascending aorta - aortic arch - descending aorta <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">Branching from Aorta: right coronary artery - left coronary artery - pericardium<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 36pt; TEXT-INDENT: -36pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">Superior vena cava: receives blood from the head and arms and chest and empties into the right atrium of the heart; formed from the azygos and both brachiocephalic veins<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">Inferior vena cava: large vein that carries de-oxygenated blood from the lower half of the body into the heart<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 36pt; TEXT-INDENT: -36pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">3. Heart beat<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Normal heart beat is 70 beat / minute<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">4. Conduction system<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Sinoauricular node (SAN) - atrioventricular node (AVN) - bundle of HIS (atrioventricular bundle) <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> - Purkinje fibers<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">5. Heart<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 72pt; TEXT-INDENT: -36pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">Location: lies in thoracic cavity, within mediastinum, an area bounded by lungs laterally, the sternum anteriorly, and thoracic vertebrae posteriorly<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Size: about the size of a fist<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Shape: cone shaped<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Anatomy: endocardium, myocardium, pericardium<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Anterior heart and vessels:<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 108pt; TEXT-INDENT: -36pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">- Right atrium: right upper chamber of the heart. The right atrium receives deoxygenated blood from the body through the vena cava and pumps it into the right ventricle which then sends it to the lungs to be oxygenated. <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 108pt; TEXT-INDENT: -36pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 108pt; TEXT-INDENT: -36pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">- Right ventricle: the lower right chamber of the heart that receives deoxygenated blood from the right atrium and pumps it under low pressure into the lungs via the pulmonary artery. <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 72pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 108pt; TEXT-INDENT: -36pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">- Left atrium: the upper right chamber of the heart. The left atrium receives oxygenated blood from the lungs and pumps it down into the left ventricle which delivers it to the body<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 72pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 108pt; TEXT-INDENT: -36pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">- Left ventricle: the left lower chamber of the heart that receives blood from the left atrium and pumps it out under high pressure through the aorta to the body<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">Heart Valve:<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Atrioventricular valve<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Mitral valve<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Tricuspid valve<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Aortic valve<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">6. Blood pressure:<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">Systolic pressure (when heart beat, contracts): 110 - 120 mm/Hg<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">Diastolic pressure (heart at rest): 70-80 mm/Hg<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">7. Pulse Rate<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">Adult: 70 - 80 beats<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">Adolescent: 80 - 90 beats<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">Toddler: 120 beats <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">Neonate/ newborn: 120 -140 beats<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">8. Arrhythmias: abnormal heart beat<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Tachycardia: heart beat greater than 100 beats<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Brachycardia: heart beat less than 60 beats<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 72pt; TEXT-INDENT: -36pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">Bradycardia: sudden decrease in heart rate; not enough oxygen pumped to the body, resulting in dizziness, extreme tiredness, shortness of breath, or fainting <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 72pt; TEXT-INDENT: -36pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 72pt; TEXT-INDENT: -36pt"><SPAN lang=EN-US style="FONT-FAMILY: Arial">Palpitation: sudden increase in heart rate; often associated with sensation of fluttering or thumping</SPAN></P>
