ExercisePhys Lesson2-1
... • It is expressed in either “relative” terms (mL/kg/min) or “absolute” terms (L/min). Relative VO2max allows for comparisons between individuals. Absolute VO2max is used to determine caloric expenditure during specific activities. ...
... • It is expressed in either “relative” terms (mL/kg/min) or “absolute” terms (L/min). Relative VO2max allows for comparisons between individuals. Absolute VO2max is used to determine caloric expenditure during specific activities. ...
7- Introduction and functional anatomy of vascular physiology
... from the heart mostly oxygenated (except pulmonary artery), under the highest pressure to tissues. The volume of blood in the arteries is called the stressed volume. The muscles of arteries are innervated by noradrenergic nerve fibers, in some instances by cholinergic fibers. The elasticity of arter ...
... from the heart mostly oxygenated (except pulmonary artery), under the highest pressure to tissues. The volume of blood in the arteries is called the stressed volume. The muscles of arteries are innervated by noradrenergic nerve fibers, in some instances by cholinergic fibers. The elasticity of arter ...
PAC01 Pulmonary Physiology
... The oxygen saturation curve is NOT a linear relationship. It represents the percent saturation as compared to partial pressure. We have the PO2 100= 97.5% saturation. At PO2 40 (veins), we get 75% saturation (15ml of O2). The AV O2 difference is the difference in mL between venous and arterial blood ...
... The oxygen saturation curve is NOT a linear relationship. It represents the percent saturation as compared to partial pressure. We have the PO2 100= 97.5% saturation. At PO2 40 (veins), we get 75% saturation (15ml of O2). The AV O2 difference is the difference in mL between venous and arterial blood ...
The endurance athlete`s lung:
... • Endurance athletes have high VO2 max values because they have large cardiac outputs… • 1) they have high stroke volumes – But… the high cardiac outputs cause short transit times… lowering saturation… compromising saturation. Chicken or egg? ...
... • Endurance athletes have high VO2 max values because they have large cardiac outputs… • 1) they have high stroke volumes – But… the high cardiac outputs cause short transit times… lowering saturation… compromising saturation. Chicken or egg? ...
Control of arterial blood pressure
... Arterial blood pressure: Is the force per unit area exerted on the vessel wall by blood Types of arterial blood pressure: 1. Systolic pressure: During contraction 2. Diastolic pressure: During relaxation 3. Pulse pressure: Difference between systolic & diastolic pressures 4. Mean arterial press ...
... Arterial blood pressure: Is the force per unit area exerted on the vessel wall by blood Types of arterial blood pressure: 1. Systolic pressure: During contraction 2. Diastolic pressure: During relaxation 3. Pulse pressure: Difference between systolic & diastolic pressures 4. Mean arterial press ...
Chapter 21: Blood Vessels and Circulation
... • Determined by interplay between pressure and resistance in cardiovascular network • If no resistance to blood flow, heart would not have to generate pressure to force blood through pulmonary and systemic circuits ...
... • Determined by interplay between pressure and resistance in cardiovascular network • If no resistance to blood flow, heart would not have to generate pressure to force blood through pulmonary and systemic circuits ...
Patent ductus arteriosus, bottle-meal, and fatal myocardial ischemia
... respiration was stable (respiratory rate 60/min, SpO2 95% in room air). Blood pressure was 50/28 (36) mmHg and heart rate was 150 bpm. Chest x-ray showed mild cardiomegaly and some evidence of pulmonary hypercirculation (Fig. 3). Cerebral ultrasound and Doppler examination revealed normal morphology ...
... respiration was stable (respiratory rate 60/min, SpO2 95% in room air). Blood pressure was 50/28 (36) mmHg and heart rate was 150 bpm. Chest x-ray showed mild cardiomegaly and some evidence of pulmonary hypercirculation (Fig. 3). Cerebral ultrasound and Doppler examination revealed normal morphology ...
Haemodynamics
... with corresponding arteries Blood pressure lower than in arteries Thin tunica media; thick tunica externa of collagen fibers and elastic networks ...
... with corresponding arteries Blood pressure lower than in arteries Thin tunica media; thick tunica externa of collagen fibers and elastic networks ...
Renal Blood Flow and Glomerular Filtration Rate
... patient probably has had an intraabdominal hemorrhage during trauma that has led to modest volume depletion. The renal system responds by reducing urine output in an attempt to maintain volume-water balance. As this case demonstrates, several mechanisms come into play to regulate urine output during ...
... patient probably has had an intraabdominal hemorrhage during trauma that has led to modest volume depletion. The renal system responds by reducing urine output in an attempt to maintain volume-water balance. As this case demonstrates, several mechanisms come into play to regulate urine output during ...
autorhythmic cell
... A typical electrocardiograph runs at a paper speed of 25 mm/s, although faster paper speeds are occasionally used. Each small block of ECG paper is 1 mm². At a paper speed of 25 mm/s, one small block of ECG paper translates into 0.04 s (or 40 ms). Five small blocks make up 1 large block, which trans ...
... A typical electrocardiograph runs at a paper speed of 25 mm/s, although faster paper speeds are occasionally used. Each small block of ECG paper is 1 mm². At a paper speed of 25 mm/s, one small block of ECG paper translates into 0.04 s (or 40 ms). Five small blocks make up 1 large block, which trans ...
v = F/A - VCOMcc
... • The same volume of blood must flow through each segment of the circulation each minute – Principle of continuity/conservation of mass • In order to reach the entire body, the vasculature is necessarily a branching system of vessels • A fundamental law of vessel branching is that at each branch poi ...
... • The same volume of blood must flow through each segment of the circulation each minute – Principle of continuity/conservation of mass • In order to reach the entire body, the vasculature is necessarily a branching system of vessels • A fundamental law of vessel branching is that at each branch poi ...
CVP Physiology
... • Venous pressure – Central venous pressure • Is the pressure in the right atrium because all systemic veins flow into the right atrium • Regulated by a balance between the ability of the right side of the heart to pump blood into the lungs, and the tendency for blood to flow into the right atrium ( ...
... • Venous pressure – Central venous pressure • Is the pressure in the right atrium because all systemic veins flow into the right atrium • Regulated by a balance between the ability of the right side of the heart to pump blood into the lungs, and the tendency for blood to flow into the right atrium ( ...
Physiology of Circulation
... • Capillary blood pressure is about 40mm Hg proximally and 20mm Hg distally. – Promotes time for exchange (blood velocity is slow) and capillaries are very permeable – High pressure does not damage thin capillary wall ...
... • Capillary blood pressure is about 40mm Hg proximally and 20mm Hg distally. – Promotes time for exchange (blood velocity is slow) and capillaries are very permeable – High pressure does not damage thin capillary wall ...
CARDIOVASCULAR SYSTEM: Vessels and Circulation (Chapter 21
... Blood flow = volume of blood flowing through a vessel in given period (total body flow = CO) Blood pressure = force per unit area exerted on vessel by blood (mmHg) blood flows from high pressure → low Resistance = opposition to blood flow, friction ↑ blood viscosity = ↑ resistance ↑ vessel length = ...
... Blood flow = volume of blood flowing through a vessel in given period (total body flow = CO) Blood pressure = force per unit area exerted on vessel by blood (mmHg) blood flows from high pressure → low Resistance = opposition to blood flow, friction ↑ blood viscosity = ↑ resistance ↑ vessel length = ...
Instructor`s Answer Key Chapter 16: Respiratory Physiology
... 1. Emphysema is a chronic, progressive destruction of alveolar tissue, resulting in fewer but larger alveoli. The weakened bronchioles have difficulty remaining open during exhalation and often collapse, trapping extra air in the alveoli. The percussion sounds on the chest therefore would result in ...
... 1. Emphysema is a chronic, progressive destruction of alveolar tissue, resulting in fewer but larger alveoli. The weakened bronchioles have difficulty remaining open during exhalation and often collapse, trapping extra air in the alveoli. The percussion sounds on the chest therefore would result in ...
CASE 14
... under varying physiologic conditions and under the influence of medications requires knowledge about the factors that regulate blood flow to specific vascular beds. Exercise is a common physiologic condition during which there are many changes. Increases in blood flow to contracting skeletal muscle ...
... under varying physiologic conditions and under the influence of medications requires knowledge about the factors that regulate blood flow to specific vascular beds. Exercise is a common physiologic condition during which there are many changes. Increases in blood flow to contracting skeletal muscle ...
19 - FacultyWeb Support Center
... Physiology of Circulation: Definition of Terms • Blood flow • Volume of blood flowing through a vessel, an organ, or the entire circulation in a given period • Measured as ml/min • Equivalent to cardiac output (CO) for entire vascular system • Relatively constant when at rest • Varies widely through ...
... Physiology of Circulation: Definition of Terms • Blood flow • Volume of blood flowing through a vessel, an organ, or the entire circulation in a given period • Measured as ml/min • Equivalent to cardiac output (CO) for entire vascular system • Relatively constant when at rest • Varies widely through ...
Physiological Correlates of the BOLD
... There is a momentary decrease in blood oxygenation immediately after neural activity increases, known as the “initial dip” in the hemodynamic response. This is followed by a period where the blood flow increases, not just to a level where oxygen demand is met, but overcompensating for the increased ...
... There is a momentary decrease in blood oxygenation immediately after neural activity increases, known as the “initial dip” in the hemodynamic response. This is followed by a period where the blood flow increases, not just to a level where oxygen demand is met, but overcompensating for the increased ...
Respiratory Care Anatomy and Physiology, 3rd
... Non-threshold substances pass through the glomerular membrane into the filtrate and are not reabsorbed, regardless of their plasma concentration. Creatinine is an example of a non-threshold substance. 8. A. The descending loop of Henle is freely permeable to water and moderately permeable to most ion ...
... Non-threshold substances pass through the glomerular membrane into the filtrate and are not reabsorbed, regardless of their plasma concentration. Creatinine is an example of a non-threshold substance. 8. A. The descending loop of Henle is freely permeable to water and moderately permeable to most ion ...
Physiology of Training #1
... • We know that max HR cannot be changed significantly • What will be the most important contributor to improved VO2max? ...
... • We know that max HR cannot be changed significantly • What will be the most important contributor to improved VO2max? ...
Diving response - CMA
... Upon initiation of the reflex three physiological effect scan be found in the body. The first response to submerging is the slowing down of the heart (10-25%). The heart rate of aquatic mammals slows down even more dramatic. Slowing the heart rate lessens the need for bloodstream oxygen, leaving mor ...
... Upon initiation of the reflex three physiological effect scan be found in the body. The first response to submerging is the slowing down of the heart (10-25%). The heart rate of aquatic mammals slows down even more dramatic. Slowing the heart rate lessens the need for bloodstream oxygen, leaving mor ...
Notes - Academic Computer Center
... Several other factors enhance venous return to the right atrium. Gravity returns blood from the head and neck when upright but opposes return from the legs. Skeletal muscle pump = squeezing of veins by leg muscles that forces blood upwards. Respiratory pump = the effect on venous blood flow cr ...
... Several other factors enhance venous return to the right atrium. Gravity returns blood from the head and neck when upright but opposes return from the legs. Skeletal muscle pump = squeezing of veins by leg muscles that forces blood upwards. Respiratory pump = the effect on venous blood flow cr ...
Regulation
... • 3. Origin of disturbance/disease in regulated system • 4. History of regulated systems and their description • 5. Different types of governors (automated regulators) • 6. Regulation of cardiac output and blood pressure • heart • vessels • kidney regulator ...
... • 3. Origin of disturbance/disease in regulated system • 4. History of regulated systems and their description • 5. Different types of governors (automated regulators) • 6. Regulation of cardiac output and blood pressure • heart • vessels • kidney regulator ...
Circulation Angina Hypertension Arrhythmias
... The pressure is the force that the heart exerts on the blo od to move it aro und an d is primarily determined by how much blood is pumped each time out of the heart into the main artery, the aorta. Blo od p resses against the walls of the blood vessels, which stretch and contract to help push the bl ...
... The pressure is the force that the heart exerts on the blo od to move it aro und an d is primarily determined by how much blood is pumped each time out of the heart into the main artery, the aorta. Blo od p resses against the walls of the blood vessels, which stretch and contract to help push the bl ...