WGU D115 PATHO UNIT 5 CARDIOVASCULAR AND LYMPHATIC SYSTEMS 2025 EXAM QUESTIONS AND 100% APPROVED CORRECT ANSWERS FIRST CLASS PASS

WGU D115 PATHO UNIT 5 CARDIOVASCULAR AND LYMPHATIC SYSTEMS 2025 EXAM QUESTIONS AND 100% APPROVED CORRECT ANSWERS FIRST CLASS PASS 2025 EXAM  WGU D115 PATHO UNIT 5 CARDIOVASCULAR AND LYMPHATIC SYSTEMS 2025 EXAM QUESTIONS AND 100% APPROVED CORRECT ANSWERS FIRST CLASS PASS Structures of the heart - CORRECT ANSWER Atrium: an upper chamber of the heart that receives blood Ventricle: lower chamber of the heart that pumps blood out Valve: a flap of tissue that prevents blood from flowing backward (tricuspid, pulmonary semilunar valve, mitral valve, aortic semilunar valve) Heart wall: epicardium, myocardium, endocardium Pericardium: two walled membranous sac containing parietal and visceral layers cardiac cycle - CORRECT ANSWER A complete heartbeat consisting of contraction and relaxation of both atria and both ventricles Diastole: relaxation, blood fills ventricles Systole: contraction, propels blood out of ventricles and into circulation function of cardiovascular system - CORRECT ANSWER to deliver oxygen and nutrients and to remove carbon dioxide and other waste products circulatory system - CORRECT ANSWER This system works as the transportation highway for the body. It consists of the heart, blood, and blood vessels. It transports substances such as oxygen, carbon dioxide, and nutrients in the body. Peripheral vascular system - CORRECT ANSWER the term used to describe the part of the systemic circulation that supplies the skin and the extremities, particularly the legs and feet. Three processes of vessel growth - CORRECT ANSWER Angiogenesis, arteriogenesis, vasculogenesis Hematocrit - CORRECT ANSWER percentage of blood volume occupied by red blood cells systolic blood pressure - CORRECT ANSWER The highest arterial blood pressure following ventricular contraction or systole diastolic blood pressure - CORRECT ANSWER The lowest arterial blood pressure that occurs during ventricular filling or diastole Mean Arterial Pressure (MAP) - CORRECT ANSWER Average pressure in the arteries throughout the cardiac cycle Pulse Pressure (PP) - CORRECT ANSWER difference between systolic and diastolic pressure function of lymphatic system - CORRECT ANSWER Important in fluid balance, immune function and transport of lipids, hormones and cytokines Cardiac Output (CO) - CORRECT ANSWER measurement of the amount of blood ejected per minute from either ventricle of the heart (in L) (heart rate multiplied by stroke volume) chest radiograph (chest x-ray) - CORRECT ANSWER a radiographic image of the chest used to evaluate the lungs and the heart (a diagnostic imaging test); AB- CXR Electrocardiogram (ECG) - CORRECT ANSWER recording of the electrical changes that occur in the myocardium during a cardiac cycle. (MI, conduction defects or dysrhythmias) echocardiography (ECHO) - CORRECT ANSWER echoes generated by high-frequency sound waves produce images of the heart to evaluate cardiac output, ejection fraction and valvular function cardiac stress testing - CORRECT ANSWER exercise tolerance test to raise your heart rate and monitor the effect on cardiac function, elicits signs and symptoms of heart disease or coronary artery disease single photon emission computed tomography (SPECT) - CORRECT ANSWER radioactive tracer is injected intravenously and a computer reconstructs a 3D image