Explain why the atria have thinner walls than the ventricles of the heart. Outline the flow of blood through the heart. Explain the function of valves as you proceed. What are the possible causes of blocked coronary arteries? What could result if the condition is not tre...
If you have a brain tumor in the parietal lobe, explain why this can cause a headache.Brain tumor:When the growth of cells occurs in an uncontrolled manner in the brain, it leads to a brain tumor. There are multiple varieties of brain tumors. Among those variables...
View Solution Assertion: Each cardiac cycle consists of systole and diastole of both the atria and ventricles. Reason: The cardiac output of an ordinary man will be much higher than that of an athlete. View Solution Assertion : A laser beam0.2Wpower can drill holes through a metal sheet, ...
, but many years and many procedures later, I have often thought of this case and said to myself: if you act stupidly, you better be lucky. In medicine, and certainly in the surgical disciplines, there is a constant drive to push the borders of our present technol- ogy ahead, to do...
You have a patient with severe mitral stenosis. When during the Cardiac Cycle should you expect to hear a murmur (during ventricular systole or diastole)? Explain your answer. In the normal cardiac cycle, the atria contract before the ventricles. W...
What does the heart have to do to compensate for a hole between the two ventricles? If the stroke volume is 80 ml and the heart rate 120 bpm, what is the cardiac output? Is this more or less than what is considered normal for a healthy adult? If a patient has a cardiac outp...
By taking a pulse you can approximate heart rate and blood flow. In standard medical practice, there are four locations frequently used for measuring heart rate. These are the brachial pulse (in the crook of the arm), the pedal pulse (on the top of the foot),...
Which happens first - depolarization of the ventricles or contraction/systole of the ventricles? What would happen if the heart were made of skeletal muscle? a. It would beat according to its own pacemaker. b. It would not contain any striations when dissected. c. Y...
Diastolic blood pressure is the force on the when the heart ventricles relax. Where is blood pressure highest? Give a brief account on blood pressure. You do not need a sphygmomanometer to determine that someone in shock has low blood pressure. What are two wa...
3. Stroke volume is regulated primarily by the amount of blood in ventricles. Valves are present in both lymph vessels and most arteries to prevent the backflow of fluid. a. True. b. False. State True or False. Explain why the statement is wrong, ...