5 Written questions
5 Matching questions
- Function of Atria
- systemic circuit pump
- right auricle
- What kind of tissue is endomysium, perimysium and epimysium and where is it located in the myocardium?
- a the medial cavity of the thorax where the heart resides.
- b endo = individual cell connective tissue
peri = larger groups of connective tissue surrounding cells.
Starts at the smallest (one cell) being surrounded by endomysium, then groups of cells surrounded by perimysium, then the epimysium and so on.
- c left side of the heart. takes a long pathway through the entire body and encounters about five times as much friction or resistance to blood flow than the pulmonary circuit pump.
- d increase the atrial volume somewhat.
- e Collect blood returning to the heart.
5 Multiple choice questions
- tough, dense connective tissue layer protects the heart, anchors it to surrounding structures, and prevents overfilling of the heart with blood.
- the internal partition that divides the heart longitudinally at the ventricles.
- 4 veins: enter the left atrium; transport blood from the lungs back to the heart (best seen posteriorly)
- the internal partition that divides the heart longitudinally at the atria
- 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.
5 True/False questions
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.
Right atrium → increase the atrial volume somewhat.
pericardium → the double walled sac surrounding the heart.
ventr = → underside
papillary muscles → conelike, play a role in valve function, project into the ventricular cavity.