Anatomy and Physiology Unit 11 Test Review
... Where do coronary veins drain to? Coronary sinus and back into the right atrium Describe the conduction system of the heart. Impulse keeps heart pumping in a consistent manner. Impulse first is generated by SA or sinoatrial node (pacemaker) and sends it across to the AV or atrioventricular node whic ...
... Where do coronary veins drain to? Coronary sinus and back into the right atrium Describe the conduction system of the heart. Impulse keeps heart pumping in a consistent manner. Impulse first is generated by SA or sinoatrial node (pacemaker) and sends it across to the AV or atrioventricular node whic ...
On Table Detection of Persistent Left Superior Vena Cava Draining
... The incidence of persistent LSVC in general population is 0.35% and 3% to 10 % in patients with congenital heart disease3,5. Rarely may it present as isolated lesion. The embryology of the venae cava has been described by Campbell and Deuchar5.Embryologicalythe superior vena cava is formed by the ri ...
... The incidence of persistent LSVC in general population is 0.35% and 3% to 10 % in patients with congenital heart disease3,5. Rarely may it present as isolated lesion. The embryology of the venae cava has been described by Campbell and Deuchar5.Embryologicalythe superior vena cava is formed by the ri ...
Prognostic value of T peak-to-end Interval for risk stratification after
... seldinger's technique after injection of 5000 IU of Heparin, 6F JL then JR coronary catheters were used to engage the corresponding arteries. The study was conducted with a General Electric Innova 2000 angiographic unit (GE medical system Milwaukee, WI, USA). (5) Holter-24h Monitorring : The patien ...
... seldinger's technique after injection of 5000 IU of Heparin, 6F JL then JR coronary catheters were used to engage the corresponding arteries. The study was conducted with a General Electric Innova 2000 angiographic unit (GE medical system Milwaukee, WI, USA). (5) Holter-24h Monitorring : The patien ...
Blood Pressure - TangHua2012-2013
... Describe the location and functions of the sinoatrial (SA) node, atrioventricular (AV) node, and Purkinje fibres Describe how the autonomic nervous system increases and decreases heart rate and blood pressure Differentiate between systolic and diastolic pressures Describe hypertension and hypotensio ...
... Describe the location and functions of the sinoatrial (SA) node, atrioventricular (AV) node, and Purkinje fibres Describe how the autonomic nervous system increases and decreases heart rate and blood pressure Differentiate between systolic and diastolic pressures Describe hypertension and hypotensio ...
Frog Heart Physiology
... muscle itself. In Amphibians, such as the frog, the pacemaker is the sinus venosus, an enlarged region between the vena cava and the right atrium. The cells of the pacemaker are termed “leaky”, meaning that calcium and sodium ions leak into the cells. Leaking of positive ions causes a slow depolariz ...
... muscle itself. In Amphibians, such as the frog, the pacemaker is the sinus venosus, an enlarged region between the vena cava and the right atrium. The cells of the pacemaker are termed “leaky”, meaning that calcium and sodium ions leak into the cells. Leaking of positive ions causes a slow depolariz ...
Automatic External Defibrillators
... faster the normal heart rhythm is restored, the greater the chance of survival of the victim with less risk of other adverse effects. The maximum time for defibrillation is generally three to five minutes after the onset of cardiac arrest. How Does an AED Work? An AED contains a power pack and two e ...
... faster the normal heart rhythm is restored, the greater the chance of survival of the victim with less risk of other adverse effects. The maximum time for defibrillation is generally three to five minutes after the onset of cardiac arrest. How Does an AED Work? An AED contains a power pack and two e ...
heart
... pulmonary circulation loop and the systemic circulation loop. Pulmonary circulation transports deoxygenated blood from the right side of the heart to the lungs, where the blood picks up oxygen and returns to the left side of the heart. ( The pumping chambers of the heart that support the pulmonary c ...
... pulmonary circulation loop and the systemic circulation loop. Pulmonary circulation transports deoxygenated blood from the right side of the heart to the lungs, where the blood picks up oxygen and returns to the left side of the heart. ( The pumping chambers of the heart that support the pulmonary c ...
Print - Circulation
... The pathologic findings are 7) carcinoid of the small intestine with metastases to the liver, 8) unusual lesions of the tricuspid and pulmonic valves and 9) telangiectasia with a proliferative and thrombotic disorganization of blood vessels of the skin. We subscribe to the suggestion of others that ...
... The pathologic findings are 7) carcinoid of the small intestine with metastases to the liver, 8) unusual lesions of the tricuspid and pulmonic valves and 9) telangiectasia with a proliferative and thrombotic disorganization of blood vessels of the skin. We subscribe to the suggestion of others that ...
Pharmacology
... Class I drugs bind more rapidly to open or inactivated sodium channels than to channels that are fully repolarized following recovery from the previous depolarization cycle. The central concept is of use-dependent channel block. It is this characteristic that enables all class I drugs to block the h ...
... Class I drugs bind more rapidly to open or inactivated sodium channels than to channels that are fully repolarized following recovery from the previous depolarization cycle. The central concept is of use-dependent channel block. It is this characteristic that enables all class I drugs to block the h ...
Understanding atrial fibrillation: A historical perspective
... In 1685 Abercromby believed that “the origin of the pulse is as mysterious as the source of the Nile” [1]. However, in 1883 the tall, indefatigable Scotsman and general practitioner Sir James Mackenzie was determined to unravel the mystery [1]. After the unexpected death during childbirth of one of ...
... In 1685 Abercromby believed that “the origin of the pulse is as mysterious as the source of the Nile” [1]. However, in 1883 the tall, indefatigable Scotsman and general practitioner Sir James Mackenzie was determined to unravel the mystery [1]. After the unexpected death during childbirth of one of ...
Heart_in_Space
... a. On Earth, gravity exerts a downward force to keep fluids flowing to the lower body (A) b. In space, the fluids tend to redistribute toward the chest and upper body (B). This is responsible for the face congestion. At this point, the body detects a “flood” in and around the heart c. The body rids ...
... a. On Earth, gravity exerts a downward force to keep fluids flowing to the lower body (A) b. In space, the fluids tend to redistribute toward the chest and upper body (B). This is responsible for the face congestion. At this point, the body detects a “flood” in and around the heart c. The body rids ...
The Treadmill Test—Where To Stop and What Does It Mean?*
... important.” Similarly, the 1996 American Heart Association guidelines on cardiovascular disease in women state that, with atypical chest pain, a negative stress ECG test in a female patient with adequate exercise tolerance as measured by “workload (ie, METS) or peak heart rate” [italics inserted] ob ...
... important.” Similarly, the 1996 American Heart Association guidelines on cardiovascular disease in women state that, with atypical chest pain, a negative stress ECG test in a female patient with adequate exercise tolerance as measured by “workload (ie, METS) or peak heart rate” [italics inserted] ob ...
The Treadmill Test—Where To Stop and What Does It Mean?*
... important.” Similarly, the 1996 American Heart Association guidelines on cardiovascular disease in women state that, with atypical chest pain, a negative stress ECG test in a female patient with adequate exercise tolerance as measured by “workload (ie, METS) or peak heart rate” [italics inserted] ob ...
... important.” Similarly, the 1996 American Heart Association guidelines on cardiovascular disease in women state that, with atypical chest pain, a negative stress ECG test in a female patient with adequate exercise tolerance as measured by “workload (ie, METS) or peak heart rate” [italics inserted] ob ...
Ince Case publication
... The increase in left ventricular (LV) volume after a myocardial infarction is a component of the remodelling process and it is associated with a poor clinical outcome. Hence, the current management strategy for ischemic LV dysfunction has been aimed to reverse the remodelling process (i.e., reductio ...
... The increase in left ventricular (LV) volume after a myocardial infarction is a component of the remodelling process and it is associated with a poor clinical outcome. Hence, the current management strategy for ischemic LV dysfunction has been aimed to reverse the remodelling process (i.e., reductio ...
Intermittent Left Anterior Hemiblock during Treadmill Exercise Test*
... The electrocardiographic criteria for the diagnosis of left anterior hemiblock have been described by Rosenbaum et a14 and consist of left axis deviation of -45' or more in the frontal plane, small Q waves in leads 1 and aVL, and an rS pattern in leads 2,3, and aVF. Intermittent left anterior hemibl ...
... The electrocardiographic criteria for the diagnosis of left anterior hemiblock have been described by Rosenbaum et a14 and consist of left axis deviation of -45' or more in the frontal plane, small Q waves in leads 1 and aVL, and an rS pattern in leads 2,3, and aVF. Intermittent left anterior hemibl ...
Biology
... Name the parts labelled A, B and C. A ................................................................................................................................... B ................................................................................................................................ ...
... Name the parts labelled A, B and C. A ................................................................................................................................... B ................................................................................................................................ ...
Phosphodiesterase Inhibition in Pediatric Heart Failure
... which showed that when compared with placebo, milrinone increased cardiovascular mortality by 34% and increased hospitalizations [37]. Despite the adult data, intravenous milrinone is still routinely used in pediatric patients hospitalized for HF exacerbations with seemingly sustained hemodynamic be ...
... which showed that when compared with placebo, milrinone increased cardiovascular mortality by 34% and increased hospitalizations [37]. Despite the adult data, intravenous milrinone is still routinely used in pediatric patients hospitalized for HF exacerbations with seemingly sustained hemodynamic be ...
CV part 1
... • The SA node has a firing rate of 60 to 100 beats/minute. This means each time there is an impulse initiated in the SA node, the heart is going to beat 60-100 beats/minute which is a normal heart rate. • If for some reason the SA node is not working right, then the AV node will fire 40-60 beats/min ...
... • The SA node has a firing rate of 60 to 100 beats/minute. This means each time there is an impulse initiated in the SA node, the heart is going to beat 60-100 beats/minute which is a normal heart rate. • If for some reason the SA node is not working right, then the AV node will fire 40-60 beats/min ...
Attitudinally Correct Cardiac Anatomy
... interventricular grooves, with smaller branches extending from them. It is beyond the scope of this chapter to fully engage in a description of the nomenclature for the entire coronary arterial system. However, there are two glaring problems which persist in the nomenclature used to describe the cor ...
... interventricular grooves, with smaller branches extending from them. It is beyond the scope of this chapter to fully engage in a description of the nomenclature for the entire coronary arterial system. However, there are two glaring problems which persist in the nomenclature used to describe the cor ...
Heart Failure/ADHF Powerpoint
... electrodes are connected to an implantable cardiomyostimulator ...
... electrodes are connected to an implantable cardiomyostimulator ...
8031 Cardiac Arrest - Sacramento County DHHS
... of all cardiac arrest rhythms. Periodic pauses in CPR should be as brief as possible and only as necessary to assess rhythm, shock VF/VT, perform a pulse check when an organized rhythm is detected. B. CPR must be performed with a “Chest Compressions, Airway, Breathing” sequence (C-A-B) to emphasize ...
... of all cardiac arrest rhythms. Periodic pauses in CPR should be as brief as possible and only as necessary to assess rhythm, shock VF/VT, perform a pulse check when an organized rhythm is detected. B. CPR must be performed with a “Chest Compressions, Airway, Breathing” sequence (C-A-B) to emphasize ...
Cardiovascular System
... gates or channels are normally closed. Calcium is felt to play a role in closing the gates which control access to the sodium channels. Channels also exist for calcium and magnesium, a familiar concept because of the recent development and use of calcium channel blockers in cardiac patients, e.g. Di ...
... gates or channels are normally closed. Calcium is felt to play a role in closing the gates which control access to the sodium channels. Channels also exist for calcium and magnesium, a familiar concept because of the recent development and use of calcium channel blockers in cardiac patients, e.g. Di ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.