the fibrous skeleton of the heart
{"Image DocumentName": "The fibrous skeleton of the heart", "Image ImageDescription": "Serves 3 roles: A mechanical base: atria anchored above and ventricles below. Perforated by 4 apertures, each containing a valve. Insulates the ventricles.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}