Cardiac Case B Mass of Heart: 332 g Decedent History • 57-year-old male • Worked as a taxi driver. Was found deceased in his parked car. • Medical history shows he maintained a reasonably healthy diet and was a normal weight • Described his job as stressful • History of smoking cigarettes Family history of heart disease and lung cancer According to the last person to ride in his car, he had complained of nausea as well as a sore arm and neck. Previous hospitalization two years ago to treat a deep vein thrombosis, which is the result of a blood clot in a vein of the leg

Congestive Heart Failure Why is this related to a valve or ventricular insufficiency? Where does the blood back up when it can't get out of the left ventricle?

Name the structure separating these two chambers of the heart. O anterior interventricular sulcus O chordae tendinae O interventricular septum O interatrial septum « Previous

Under the microscope, I can see a section through one of the chambers of the heart. The myocardium is thick and the endocardium is very thin. In addition, I can see a valve that connects this chamber to the next which has two cusps that prevent backflow from one chamber into another 4. Where in the heart am 1? What does the thickness of the myocardium tell you about this region of the heart? What is the valve called? What does it do? What other valve would you see in this area of the heart? Where is it situated?

4. Pathophysiology of cardiac arrhythmia?

What is the function of the pulmonary circulation In a resting state, explain what happened to the heart rate when the stroke volume decreased. Why does this occur? DescribetheFlank-Starlinglawintheheart. Compare the structural features of the different chambers and valves of the heart and how this relates to their function. Explain the flow of the blood as it passes through the heart. Describe how the heart alters stroke volume under sympathetic stimulation.     please answer the queations into 2 paragraphs. thanks.

A person is known to suffer coronary arteriosclerosis and suddenly complaint of chest pain, the hospital diagnosis was acute myocardial infarction ---- 6 hours later he died of cardiac arrhythmia.   What is the cause of death?   What is the mechanism of death?   What is the manner of death?

O Cardio_Phys 6 Unanswered Which of the following channels are involved in the action potential in contractile cells of the heart? A Na+ leak channels voltage-gated Na+ channels C voltage-gated Ca+2 channels D all of the above E B and C only

- HW: Cardiovascular System: The Heart 4 of 30 beling Activity: Overview of the cardiac conduction system The generates an action potential, which spreads to atrial cells and the AV node. After the delay, the action potential is conducted to the AV bundle and then to the right and left bundle branches. The spreads from the bundle branches along the Purkinje fibers to the of the ventricles. Course Chat MacBook Pro Search or tune LIRI

Discuss why some coronary bypass surgeries have to be repeated.