Med surg focus questions and correct answers

MED SURG FOCUS QUESTIONS AND CORRECT ANSWERSFocus Questions Week 6Cardiovascular System:1. What are the structures of the cardiovascular system?• The cardiovascular system consists of the heart, major arteries and veins of the heart,major branches of the aorta, major veins, and blood and it has three main functions: totransport nutrients, oxygen, and hormones to cells throughout the body and removalof metabolic wastes (carbon dioxide, nitrogenous wastes)2. How is the heart divided?• The heart is divided into four chambers: the two upper chambers are called the atria,the right atrium and left atrium are separated by a wall of tissue called the atrialseptum. The two lower chambers are called the ventricles and are separated into theright and left ventricle by the ventricular septum.3. How does the heart contract?• The atria and ventricles work together, alternately contracting and relaxing to pumpblood through your heart. The electrical activity spreads through the walls of the atriaand causes them to contract- which forces blood into the ventricles. The SA node setsthe rate and rhythm of your heartbeat.4. What is systole and diastole?• These terms refer to when the heart muscles relax and contract. The balance betweenthe two determines a person’s blood pressure. The difference between the two isdiastole is when the heart muscle relaxes and systole is when the heart musclecontracts.5. What is stroke volume and cardiac output?• Stroke volume: … Purchase document to see full attachment

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