5 Written questions
5 Matching questions
- Where is the myocardium found and what kind of tissue is it?
- interventricular septum
- coronary sinus
- Ascending aorta
- Anterior interventricular sulcus
Ascends short distance within the pericardium; Has aortic valve at its origin; origin: Left ventricle (aortic vestibule)
Groove on anterior surface; extends from coronary sulcus to inferior margin; marks position of interventricular septum;
- c collects blood draining from the myocardium
- d The endocardium underlies the much more voluminous myocardium, the muscular tissue responsible for the contraction of the heart.
Cardiac muscle is a type of involuntary striated muscle found in the walls and histologic foundation of the heart, specifically the myocardium.
- e the internal partition that divides the heart longitudinally at the ventricles.
5 Multiple choice questions
- the double walled sac surrounding the heart.
- the right side of the heart. short, low-pressure circulation.
- connective tissue fibers that form a dense network to reinforce the myocardium internally and anchor the cardiac muscle fibers.
- deep to the fibrous pericardium: a thin, slippery, 2-layer serous membrane. its parietal layer lines the internal surface of the fibrous pericardium.
5 True/False questions
superior vena cava → returns blood from body regions inferior to the diaphragm. (lack oxygen.
What kind of tissue is endomysium, perimysium and epimysium and where is it located in the myocardium? → -The endocardium is the inner layer of the heart. It consists of epithelial tissue and connective tissue.
-Lines the inner cavities of the heart, covers heart valves and is continuous with the inner lining of blood vessels. (the inner lining of vessels are endothelial cells)
-Purkinje fibers are located in the endocardium. They participate in the contraction of the heart muscle.
trabeculae carneae → supplies the left atrium and the posterior walls of the left ventricle.
systemic circuit pump → the right side of the heart. short, low-pressure circulation.
circumflex artery →
Passes between pulmonary trunk and right auricle; lies in the coronary sulcus; distributes blood to the right atrium, right ventricle and left ventricle.