L54 Gross heart Flashcards
R. Ventricle surface
Inferior border
Anterior surface
L. Atrium surface
superior border
Posterior surface
R. Atrium surface
Right border
L. Ventricle surface
Left border and apex
Atrial wall description
smooth muscular surface
Sinus venarum
Roof of heart
Name
Description
Auricle
Rough with pectinate muscle
Verticle ridge separating Auricle from atrial wall
Crista terminalis
Tricuspid cusps
Anterior
Septal
Posterior
Cusps are anchored to papillary muscles by
Chordae tendineae
R Ventricle interior wall
Description
Rough with tabeculae carneae
Septomarginal travecula is located
medially
Moderator band
Left atrial wall
Description
smooth muscular surface
Left atrial autrcle
Rough with pectinate muscle
Mitral valve cusps
anterior
posterior
Left ventricle interior wall
Rough with trabeculae carnea
No moderator band
Leads to ascending aorta
aortic orifice
Aortic semilunar valve cusps
Right
Left
Posterior
Pulmonary semilunar valve cusps
Right
Left
Anterior
Fibrous skeleton
Made of
Provides (3)
4 dense collagen rings and 2 trigones
Attachment, support, insulation
Ligamentum arteriosum
location
Fetal name
Used to
Between L pulmonary artery and aorta
Ductus arteriosus Served to shunt blood from R ventricle to aorta
Sinuatrial nodal branch comes off of
Anterior R atrial branch
Circumflex artery runs in
Supplies
coronary sulcus
Supplies posterior Left Ventricle
Left marginal
Branch off of
Supplies
Branch of Circumflex
Lateral left ventricle
Circumflex artery turns inferior to become
posterior left ventricular