How things flow through the heart: • blood drains into the right atrium through the superior vena cava‚ inferior vena cava‚ and the coronary sinus (drains the heart muscle itself)→Right Ventricle→pulmonary semilunar valves→lungs→pulmonary veins→left atrium→bicuspid valve→left ventricle→aortic semilunar valve→systemic circuit. What the valves do: • Prevent backflow into the atria and ventricles‚ ensuring that blood only flows one way through the heart. what vessels bring blood to the heart and
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valve 16 months ago and a Streptococcus mutans infection of the aortic valve 1 month ago. During this latter hospitalization‚ an ECG showed moderate aortic stenosis‚ moderate aortic insuffi - ciency‚ chronic valvular vegetations‚ and moderate left atrial enlargement. Two years ago J.F. received an 18-month course of parenteral nutrition (PN) for malnutrition caused by idiopathic‚ relentless nausea and vomiting (N/V). She has also had coronary artery disease (CAD) for several years‚ and 2 years ago
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Pulse rate During the practical while at rest the pulse is at a normal speed as the person is not doing any activity which requires lots of energy. This changes when the person starts to exercise as the line on the graph increases‚ this shows that the pulse rate is increasing because the heart is beating faster to make sure enough oxygen reaches the cells‚ this also causes the breathing to increase as the body has to take in more oxygen to supply the body and remove the carbon dioxide. In the body
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Unit 4222-237 Dementia Awareness (DEM 201) 1.1 – Explain what is meant by the term ‘dementia’ The term dementia describes a set of symptoms which include loss of memory‚ mood changes and problems with communication and reasoning. These symptoms occur when the brain is damaged by numerous certain diseases. Dementia is progressive‚ which means the symptoms will gradually get worse. How fast dementia progresses will depend on the individual person and what type of dementia they have. Each person
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CHAPTER 3 Maternal Physiology Michael C. Gordon Body Water Metabolism 42 Osmoregulation 43 Salt Metabolism 43 Renin-Angiotensin-Aldosterone System 43 Atrial and Brain Natriuretic Peptide 44 Cardiovascular System 44 Heart 44 Cardiac Output 45 Arterial Blood Pressure and Systemic Vascular Resistance 46 Venous Pressure 47 Central Hemodynamic Assessment 47 Normal Changes That Mimic Heart Disease 47 Effect of Labor and the Immediate Puerperium 48 Respiratory System 49 Upper Respiratory
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Running Head: Sepsis 1 Sepsis: A Clinical Case Study Example Conestoga College Running Head: Sepsis 2 Abstract Sepsis is an inflammatory systemic response to infection. The symptoms are produced by the host’s defense systems rather than by the invading pathogens (Schouten et al.‚ 2008). Sepsis is a frequent cause of admission to intensive care units (ICUs) and it is one of the leading causes of death among hospitalized patients (Alberti et al.‚ 2003). It is a public health
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Alcohol The effects of alcohol on the human brain Many teens today face the situation of alcohol and alcohol abuse. Although we cannot make their choices for them‚ we can persuade them into not taking alcohol by knowing the risks first; a lot like warnings on smoke packages. Alcohol can have a big affect on the adolescent mind. The brain of a an average human being keeps developing to the age of adolescence; people believe that the brain stops developing at the age of adolescence‚ but
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NURSING: The Postoperative Phase Postoperative care of the cardiac surgery patient is challenging in that changes can occur rapidly. The preoperative condition of the patient as well as intraoperative events should be considered in postoperative care. It is essential for the nurse to anticipate the possible complications so that appropriate interventions are initiated in a timely manner in order to ensure a positive outcome for the patient. There is a flurry of activity as the patient enters
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Danielle Rollins Cardiovascular Physiology Activity 1 1) Explain why the larger waves seen on the oscilloscope represent ventricular contraction. The ventricular contraction is when the blood is sent through the whole body as opposed to the atrial contraction that sends the blood to the heart and lungs. 2) Explain why the amplitude of the wave did not change when you increased the frequency of the stimulation. (Hint: relate your response to the refractory period of the cardiac action potential)
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B: antigen B‚ antibody A BT AB: antigen AB‚ antibodies none 5. Define systolic and diastolic. (ventricular diastole‚ atrial systole etc.) Ventricular diastole is the period during which the ventricles are relaxing‚ while atrial diastole is the period during which the atria are relaxing. Atrial systole represents the contraction of myocardium of the left and right atria. Atrial systole occurs late in ventricular diastole. One force driving blood from the atria to the ventricles is the decrease
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