Heart Description Flashcards
Weight of the heart?
300-350 Grams
What is the surface structure covering the heart?
Pericardium (smooth glistening, and shiny) and Fat
Description of Right atrium
Right auricle free, smooth, the atrium is free, the tricuspid valve circumference is 130mm and free, the foramen ovale is closed to fossa ovale, the chordates tendiane is threadlike.
Right ventricle
Thickness of the wall 4-5 mm, smooth inner surface, circumference of the pulmonary valve is 80 mm, cusps are movable free and thin, inner surface of the pulmonary trunk is ivory.
Left atrium
Normal in diameter, smooth inside, auricle is free, the bicuspid valves are free thin and movable, chorda tendinae are thin threadlike and the papillary muscles are cylindrical diameter of the bicuspid valve is 105 mm.
Left ventricle
lumen is free and smooth inside, 10-14 mm thick, the circumference of the aortic semilunar valves are 65 mm with free movable cusps. Diameter of circumflex and anterior descending is normal. The aorta and its branches are ivory in color on the inside.
The myometrium is brown in color with a reddish tint, rubbery consistence
Atherosclerosis of the aorta and coronary arteries
calcified ulcerated yellow plaques with dots/hemorrhages reducing the lumen size
Myocardial infraction acute <24hours
There is a paler yellow area surrounded by a hemorrhagic borders, if present, removable greyish material resulting from acute fibrinous pericarditis. look for the thrombus that caused the infraction or the location in which it caused the obstruction
Myocardial infraction >24 hours
whitish scar tissue has replaced the necrotic site
Acute endocarditis
Infective: Find large yellowish/greyish thrombi on the valves, can lead to valve destruction.
If not infective: no yellow colour but greyish thrombi on the edge of the valve
Chronic endocarditis
Valves are no longer freely movable but rather destroyed and calcified, stenotic.
