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Chapter 9

Cardiovascular system

Heart has __ chambers 4
Upper chambers Right and Left atrium
Lower chambers Right and Left ventricle
Septum divides heart into right and left protions
Interatrial Septum Separate the atria
Interventricular septum separates the ventricular
Heart valve flow Mitral>tricuspid>aortic>pulmonary
Endocardium membrane that lines the interior cavities of the heart
Myocardium thick, muscular layer
Epicardium outer membrane
Pericardium loose, protective sac that surrounds and encloses the heart
Flow of deoxygenated blood through heart enters superior vena cava>inferior vena cava> right atrium>tricuspid valve opens>right ventricle>pulmonary valve>pulmonary artery
Flow of oxygenated blood through heart pulmonary veins>left atrium>mitral valve opens>left ventricle>aortic valve>aorta>out
Heart receives oxygenated blood right and left coronary arteries
angi/o vessel
aort/o aorta
arteri/o artery
ather/o fatty (lipid) paste
atri/o atrium
cardi/o heart
coron/o circle or crown
my/o muscle
pector/o, steth/o chest
phleb/o, ven/o vein
sphygm/o pulse
thromb/o clot
varic/o swollen, twisted vein
ventricul/o ventricle
Blood pressure Force exerted by circulating blood on the walls of the arteries, veins, and heart chambers
Determination of blood pressure the volume of blood, the space within the arteries and arterioles, and the force of the heart contractions
Diastole period in cardiac cycle when blood enters relaxed ventricles from the atria
Systole period in cardiac cycle when heart is in contraction and blood is ejected through the aorta and pulmonary artery
normotension normal BP
hypotension low BP
hypertension high BP
cardiac conduction Provides electrical stimulus that is necessary to cause the heart muscle to pump blood by the continual contraction (systole) and relaxation (diastole) of myocardial (heart muscle) cells
ACE angiotensin-converting enzyme
ACS acute coronary syndrome
ASD atrial septal defect
AV atrioventricular
BP blood pressure
CABG coronary artery bypass graft
CAD coronary artery disease
CCU coronary care unit; critical care unit
CHF congestive heart failure
CO cardiac output
CTA computed tomographic angiography
CXR chest x-ray
DVT deep vein thrombosis
ECG electrocardiogram
ECHO echocardiography
EKG electrocardiogram
EPS electrophysiologic study
HTN hypertension
ICD implantable cardioverter defibrillator
IV intravenous
MI myocardial infarction
MRA magnetic resonance angiography
MUGA multiple-gated acquisition (scan)
MVP mitral valve prolapse
NSR normal sinus rhythm
PCI percutaneous coronary intervention
PDA patent ductus arteriosus
PET positron-emission tomography
PTCA percutaneous transluminal coronary angioplasty
PVC premature ventricular contraction
RCA right coronary artery
SA sinoatrial
SCA sudden cardiac arrest
STAT immediately
SV stroke volume
TEE transesophageal echocardiogram
tPA/TPA tissue plasminogen activator
VSD ventricular septal defect
Created by: maariiaa
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