anatomy of the heart Flashcards
(21 cards)
mediastinum
cavity in chest between lungs contains heat
name sections of mediastinum
superior
inferior
anterior
middle
posterior
peristernum
membrane that surrounds the heart
inner- fibrous layer
outer - double membrane serous
fibirous layer
touches
major vessels
central tendon from diaphragm
sternum
pedietral serous layer
serous layer
pedietral
pedietral cavity- fluid
visceral - touches heart
rs of heart chambers
right a and v
pulmonary artery
vena cava
tricuspid valve
pulmonary valve
ls of the heart chambers….
left a and v
aorta
pulmonary vein
mitral valve
aortic valve
tricuspid valve
3 cusps
5th ics left of sternum
pulmonary valve
3 cusps
2cnd ics left of sternum
mitral valve
2 cusps
5th ics mcl
aortic valve
3 cusps
2cnd ics right of sternum
valve diseases
stenosis- narrowing
reguritation- problem closing valve
what does the right coronary artery supply
both atria
right ventricle
part of posterior left ventricle
interatrial septum
posterior part of interventricular septum
sa node
av node
left coronary artery supplies
both atria
anterior part of left ventricle
anterior interventricular septum
adjacent right atrium
where do the majority of cardiac veins drain into
coronary sinus right atrium
where do anterior cardiac veins drain into
into right atrium
thebesian veins in myocardium drain to
directly into atria and ventricles
function of cardiac conducting systems
initiates and co-ordinates contractions of myocardium
myocardium
muscular tissue of the heart
whats are the components of the cardiac conducting system
av node
sa node
bindles of his
describe the cardiac conducting system
the atria and ventricles are separated by fibrous layer
only electronic pathway through bundles of HIS
av node delays signal
atria contract first and then ventricles
