right side of the heart Flashcards
what divides up the heart
septum interventricularis longitudenales divides L and R
septum transversus divides Atria from ventricles
the right atrium
right, dorsocranial part of heart.
receives deoxy. from vena cava cran. and caud.(ostium venae cavae) and coronaries (sinus coronarius)
made up of sinus venae cavae and right auricle.
what divides the atria
septum interatrialis. can find fossa ovale caudal to this
tuberculum intervenosum
transverse ridge between 2 venae cavae openings
directs blood inflow through atrioventricular opening
what is found in the auricles
musculi pectinati
the right ventricle
cranial. recieves deoxy. from R.A.
pumps blood into truncus pulmonaris to lungs. shorter than L.V
Tricuspid valve
between R.A and R.V.
cuspis parietalis, septalis, angularis.
between valves and m. papillaris
chordae tendinae.
1 muscle attaches to 2 valves.
what are chordae tendinae for
prevent valves prolapsing into atria during systole
where does the truncus pulmonalis come from
arises from conus arteriosus, or dilation of left craniodorsal angle of ventricle
what separates ostium atrium atrioventriculare from conus arteriousus
crista supraventricularis
semilunar valves
between truncus pulmonalis and ventricle.
sinistra, dextra, intermediate.
prevents blood flowing back during diastole
what accelerates valve closure
nodule in middle of valve
what crosses the lumen of R.V
trabecula septomarginalis dextra. singular muscular band
reduces blood turbulance
