5 Written questions
5 Matching questions
- interatrial septum
- corona =
- inferior vena cava
- fibrous skeleton of the heart
- pectin =
- a comb
- b connective tissue fibers that form a dense network to reinforce the myocardium internally and anchor the cardiac muscle fibers.
- c the internal partition that divides the heart longitudinally at the atria
- d crown
- e returns blood from body regions inferior to the diaphragm. (lack oxygen.
5 Multiple choice questions
- "inside the heart" is a glistening white sheet of endothelium (squamous epithelium) resting on a thin connective tissue layer. Located on the inner myocardial surface, it lines the heart chambers and covers the fibrous skeleton of the valves.
- 4 veins: enter the left atrium; transport blood from the lungs back to the heart (best seen posteriorly)
- runs toward the left side of the heart and then divides into its major branches.
- increase the atrial volume somewhat.
- conelike, play a role in valve function, project into the ventricular cavity.
5 True/False questions
Right atrium →
1 of 4 chambers; smooth, thin, posterior wall; thin, rough anterior wall; receives superior and inferior venae cavae and coronary sinus
Ascending aorta →
Ascends short distance within the pericardium; Has aortic valve at its origin; origin: Left ventricle (aortic vestibule)
fibrous pericardium → tough, dense connective tissue layer protects the heart, anchors it to surrounding structures, and prevents overfilling of the heart with blood.
serous pericardium → deep to the fibrous pericardium: a thin, slippery, 2-layer serous membrane. its parietal layer lines the internal surface of the fibrous pericardium.
Right ventricle → pumps blood into the pulmonary truck, which routes the blood to the lungs where gas exchange occurs.