More Stuff About The Heart Flashcards
Midsternal line
2nd rib
Diaphragm
Sternum
Point of maximal intensity
Pericardial cavity
Near the heart
Pleural cavity
Near the left lung (anterior view)
Spinal cord
Epicardium
Superficial
-Continuous with visceral pericardium
Myocardium
Medial
-Spiral bundles of cardiac muscle cells anchored by a fibrous skeleton
Endocardium
Deep
-Continuous with the lining of blood vessels
Pericardium
Superficial
-Protects, anchors, and prevents overfilling
-A thin double walled membranous sac, enclosing the heart.
Atria
Separated internally by the internal septum
Coronary sulcus
Atrioventricular groove
-Encircles the junction of the atria & ventricles
Auricles
Increases the atrial volume
Atrioventrical (AV) valves
Prevents back flow into the atria when ventricles contact…
-Tricuspid
-Mitral (bicuspid) valve
-Chordae tendineae… anchors the AV valve cusps to papillary muscles
Semilunar (SL) valves
Prevents back flow into ventricles when ventricles relax
-Aortic semilunar valve
-Pulmonary semilunar valve