5 Written questions
5 Matching questions
- Pericardial Cavity
- Arterial systole
- Heart valve replacement or repair
- Right atrium
- a The space between the visceral and parietal pericardium, is filled with a thin layer of serous pericardial fluid.
- b is a surgical procedure performed on valves that are so deformed and scarred from conditions such as endocarditis that they have become severely incompetent or stenosed.
- c The thick middle layer of the heart, is composed of cardiac muscle cells and is responsible for the heart's ability to contract.
- d has 3 major openings: The openings from the superior and inferior vena cava receive blood from the body, and the opening of the coronary sinus receives blood from the heart itself.
- e is contraction of the arterial myocardium
5 Multiple choice questions
- reduce the rate and strength of cardiac muscle contractions, reducing the heart's demand for oxygen.
- is the pressure the contracting left ventricle must produce to overcome the pressure in the aorta and move blood into the aorta.
- means to contract. Contraction of the heart chambers during which blood leaves the heart chambers; usually refers to ventricular contraction.
- results from the heart's normal functional characteristics and does not depend on either neural or hormonal regulation.
- is any part of the heart other than the SA node that generates a heartbeat.
5 True/False questions
Cervical and Upper thoracic sympathetic chain ganglia → which project to the heart as cardiac nerves.
P Wave → Slows and strengthens contractions of the heart muscle by increasing the amount of Ca2+ that enters cardiac muscle cells and by prolonging the action potentials' refractory period.
Intercalated disks → The cells are bound end-to-end and laterally to adjacent cells by specialized cell-to-cell contacts. Cell-to-cell attachment with gap junctions between cardiac muscle cells.
Cardiomyplasty → is a process whereby a surgeon threads a small balloon, usually into the femoral artery, through the aorta, and into a coronary artery. After entering the partially occluded coronary artery, the balloon is inflated, flattening the atherosclerotic deposits against the vessel walls and opening the occluded blood vessel.
Heart skeleton → is a loss of action potential conduction through the heart.