Annulus fibrosus
An annulus fibrosus is a ring-shaped, local thickening of connecting tissue that encircles the base of each cardiac valve. The annulus is a component of the cardiac skeleton and is continuous with the connective tissue core of each valve leaflet, providing support for the valve as well anchorage for the insertion of cardiac muscle fibers. 100x
Annulus fibrosus
An annulus fibrosus is a ring-shaped, local thickening of connecting tissue that encircles the base of each cardiac valve. The annulus is a component of the cardiac skeleton and is continuous with the connective tissue core of each valve leaflet, providing support for the valve as well anchorage for the insertion of cardiac muscle fibers. 100x
Right atrioventricular valve
An annulus fibrosus is a ring-shaped, local thickening of connecting tissue that encircles the base of each cardiac valve. The annulus is a component of the cardiac skeleton and is continuous with the connective tissue core of each valve leaflet, providing support for the valve as well anchorage for the insertion of cardiac muscle fibers. 100x
Interventricular septum membranous portion
An annulus fibrosus is a ring-shaped, local thickening of connecting tissue that encircles the base of each cardiac valve. The annulus is a component of the cardiac skeleton and is continuous with the connective tissue core of each valve leaflet, providing support for the valve as well anchorage for the insertion of cardiac muscle fibers. 100x
Area shown in next image
An annulus fibrosus is a ring-shaped, local thickening of connecting tissue that encircles the base of each cardiac valve. The annulus is a component of the cardiac skeleton and is continuous with the connective tissue core of each valve leaflet, providing support for the valve as well anchorage for the insertion of cardiac muscle fibers. 100x