Chapter 14: Cardiovascular Physiology Cardiovascular Physiology Chapter 14 " Heart anatomy " Cardiac muscle cells " Autorhythmic cells " Cardiac cycle " Cardiac output " 1 Functions of Circulatory System " Transportation" – Respiration" Transport 02 and C02." – Nutrition" Absorbed digestion products delivered to liver and tissues" – Excretion" Carry metabolic wastes to kidneys" – Hormonal: " Carry hormones to target tissues" 2 The cardiovascular
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chambers. The cardiac cycle is controlled by electrical waves that spread throughout the heart. The blood flows into the heart straight into the atria via the vena cava and pulmonary vein. A wave of electrical activity is firstly spread from the Sino-atrial node which spreads across both atria‚ this causes the atria to contract which forces blood down into the ventricles through the atrioventricular valves. The atrioventricular septum prevents the wave crossing the ventricles. The wave passes to the
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needed to be reminded 1. Over 80% of ARDS cases are primarily caused by sepsis and or bacterial pneumonia. The diagnostic criteria of ARDS is acute onset of symptoms‚ bilateral pulmonary infiltrates on chest radiograph‚ hypoxia and the absence of left atrial hypertension. The ratio
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Lab 34b Cardiovascular Physiology 1. What was the baseline heart rate for the frog? 59-63 bpm 2. Which wave is larger‚ the one for atrial contraction or the one for ventricular contraction? Why? Ventricular. It shows the strength of the ventricle as it pumps blood‚ and it is a thicker muscle to pump stronger as it contracts 3. At what time during the contraction cycle was it possible to induce an extrasystole? The time during the relaxation part of cardiac cycle. 4. By clicking the Multiple
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compression fractures. She is followed by Dr.Allan vrable at the spine institute for pain management. She suffers from chronic advanced COPD and is oxygen dependent at 2L/min continuously. She is followed by Dr. Pandya for pulmonary. She suffers from Atrial Fib for which she takes Coumadin. She is follow by Dr. Chalassani for cardiology. He also monitors her Coumadin level monthly. She suffers from co-morbidities of chronic shortness of breath related to her COPD‚ chronic anxiety as a result of her shortness
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- what is happening during each of them? diastole=relaxation systole=contraction During diastole‚ the atria and ventricles of your heart relax and begin to fill with blood. At the end of diastole‚ your heart’s atria contract (atrial systole) and pump blood into the ventricles. The atria then begin to relax. Next‚ your heart’s ventricles contract (ventricular systole) and pump blood out of your heart. The average ventricular stroke volume Label the EKG peaks according
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Fluid Balance Explain in detail the fluid compartments of the body‚ including distribution of fluid and electrolytes within each compartment and the movement between compartments. In the average person water constitutes 60% to the total body weight.: 42L in a 70kg individual. 40% is intracellelular fluid‚ while remaining 20% is extracellular. The extracellular fluid can be divided into plasma (from intravascular compartment) and interstitial fluid intracellular fluid (28 L‚ about 35% of lean
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NU 545 Unit 2 Study Guide Review the anatomy of the brain. (pg. 451) Which portion is responsible for keeping you awake? (pg. 453) The epithalamus‚ pineal gland‚ functions much like the limbic system by influencing the secretion of melatonin associated with circadian rhythms. Controlling thought? (pg. 452) They parietal lobe is involved in sensory association (storage‚ analysis‚ and interpretation of stimuli). Emotions and behavior? (pg. 453) The hypothalamus is responsible
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are unpreventable‚ as some issues result in poor care. “Myocardial infarction is commonly called a heart attack‚ a coronary or simply an MI” (Marieb 363) Issues that can lead to a myocardial infraction or heart disease are heart blocks‚ ischemia‚ fibrillation‚ tachycardia‚ bradycardia and even congestive heart failure. This means that there is an inadequate blood supply flowing to the heart in most cases. (Marieb 365-369) Hypertension is consider to be a “silent killer.” Because the heart is forced
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100 CASES in Surgery This page intentionally left blank 100 CASES in Surgery James A Gossage MBBS BSc MRCS Specialist Registrar in General Surgery Bijan Modarai MBBS BSc PhD MRCS Specialist Registrar in General Surgery Arun Sahai MBBS BSc MRCS Specialist Registrar in Urology Richard Worth MBBS BSc MRCS Orthopaedic Research Fellow Volume Editor: Kevin G Burnand MS FRCS Professor of Vascular Surgery‚ Academic Department of Surgery‚ King’s College
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