Lab Exam Study Flashcards
Atrioventricular sulcus
Separates atria and ventricles
Fibrous pericardium
Outter layer of the pericardium that Anchors the heart to surround structures and made of dense irregular connective tissue that helps the heart from overfilling
Serous pericardium
Composed of two more layers. The parietal and visceral. The parietal is fused to the fibrous layer and the visceral lays on the heart.
Pericardial cavity
Between the parietal and visceral layer filled with fluid that helps the heart contract without friction
Epicardium
Also known as the visceral layer. Outer most layer and made of simple squamous epithelial
Myocardium
Middle layer made of cardiac muscle and loose connective tissue
Endocardium
Inner most layer made of simple squamous epithelium
Grouped together on left side
Circumflex artery
Left coronary artery
Great cardiac vein
Anterior interventricular artery
Grouped together on the right side
Right coronary artery
Small cardiac vein
Marginal artery
Cardiac myocytes
Another name for cardiac cells
Intercalated discs
Hold cardiac cells tightly together and allow the cells to contract simultaneously
Fossa ovalis
Remnant of the foramen ovale
The main veins of the heart are
The great left
The middle posterior
The small right
Interventricular septum
Separates the two ventricles
Myocardial infarction
Also known as heart attack caused by lack of blood supply to the myocardium
