Looking at a heart
... Look at the second diagram. Cut upwards carefully into the left atrium along the line shown in the diagram. ...
... Look at the second diagram. Cut upwards carefully into the left atrium along the line shown in the diagram. ...
PART IV LABORATORY EXAMINATION
... standardization button that produces a 1 mV wave. The standardization mark (St) produce when the machine is correctly calibrated is a square wave 10 mm tall. If the machine is not standardized correctly, the 1 mV signal will produce a deflection either more or less than 10 mm, and the amplitudes of ...
... standardization button that produces a 1 mV wave. The standardization mark (St) produce when the machine is correctly calibrated is a square wave 10 mm tall. If the machine is not standardized correctly, the 1 mV signal will produce a deflection either more or less than 10 mm, and the amplitudes of ...
Physiological Properties Of Heart Muscle Frog Dissection
... both morphologically and functionally. It is able to initiate its own rhythmic contractions without requiring a stimulation from outside the heart. This is due to "leaky" cell membranes, in which calcium and sodium ions slowly leak into the cells. This leaking causes a slow depolarization to thresho ...
... both morphologically and functionally. It is able to initiate its own rhythmic contractions without requiring a stimulation from outside the heart. This is due to "leaky" cell membranes, in which calcium and sodium ions slowly leak into the cells. This leaking causes a slow depolarization to thresho ...
Dissection of a pig`s or sheep`s heart
... Try to identify all the structures and the blood vessels. If they have been cut off, try to find the roots of the main veins and arteries. Make a labelled drawing of the heart (actual size, front view). With a dotted pencil line indicate where you suppose the atria and ventricles are located. (Hint: ...
... Try to identify all the structures and the blood vessels. If they have been cut off, try to find the roots of the main veins and arteries. Make a labelled drawing of the heart (actual size, front view). With a dotted pencil line indicate where you suppose the atria and ventricles are located. (Hint: ...
Title: Physiology of the cardiovascular system /Heart and Circulation/
... d. The opening and closing of the heart valves is the result of pressure gradient between two sides of the valve cusps. e. Heart sounds result from the closing of valve and turbulence of the blood against the inner heart wall. They are described as first and second heart sounds ( S1 and S2). S1 is l ...
... d. The opening and closing of the heart valves is the result of pressure gradient between two sides of the valve cusps. e. Heart sounds result from the closing of valve and turbulence of the blood against the inner heart wall. They are described as first and second heart sounds ( S1 and S2). S1 is l ...
Goes the Heart- Atrial Fibrillation
... pathways in the heart altering, causing the many impulses to ‘fight’ for a passage through the AVN; this is usually the cause in older people. Treatment/Management of Atrial Fibrillation Once you have been found to suffer with atrial fibrillation, there are a few treatment options available, dependi ...
... pathways in the heart altering, causing the many impulses to ‘fight’ for a passage through the AVN; this is usually the cause in older people. Treatment/Management of Atrial Fibrillation Once you have been found to suffer with atrial fibrillation, there are a few treatment options available, dependi ...
Shock - Hamilton Health Sciences
... activity No excitation of the heart muscle No Cardiac output Usually the terminal rhythm of a an unsuccessful cardiac resuscitation ...
... activity No excitation of the heart muscle No Cardiac output Usually the terminal rhythm of a an unsuccessful cardiac resuscitation ...
Ventricular Conduction Disturbances: Bundle Branch Blocks and
... patients with long-standing hypertensive heart disease, a valvular lesion (e.g., calcification of the mitral annulus, aortic stenosis, or aortic regurgitation), or different types of cardiomyopathy (see Chapter 11). It is also seen in patients with coronary artery disease and often correlates with i ...
... patients with long-standing hypertensive heart disease, a valvular lesion (e.g., calcification of the mitral annulus, aortic stenosis, or aortic regurgitation), or different types of cardiomyopathy (see Chapter 11). It is also seen in patients with coronary artery disease and often correlates with i ...
Cardiovascular System Notes
... inserted into the artery and a balloon is used to stretch the walls open. A bypass can also treat clogged arteries, a vein is used to replace a clogged artery. Coronary bypass refers to a procedure where the coronary artery is bypassed to supply blood to the heart. (The phrase “quadruple bypass” mea ...
... inserted into the artery and a balloon is used to stretch the walls open. A bypass can also treat clogged arteries, a vein is used to replace a clogged artery. Coronary bypass refers to a procedure where the coronary artery is bypassed to supply blood to the heart. (The phrase “quadruple bypass” mea ...
Name That Rhythm-Blocks & stuff 2445KB Jan 14 2015 08:21:51
... – Frequent PVC’s – EMT-P not pushing the ...
... – Frequent PVC’s – EMT-P not pushing the ...
Sudden Cardiac Death - Heart Rhythm Society
... are sometimes taken by patients who also have an ICD, in order to reduce how often it fires. Implantable cardioverter defibrillators (ICDs) – These devices have been very successful in preventing sudden cardiac death in high-risk patients. Like a pacemaker, ICDs are implanted under the skin. Wires cal ...
... are sometimes taken by patients who also have an ICD, in order to reduce how often it fires. Implantable cardioverter defibrillators (ICDs) – These devices have been very successful in preventing sudden cardiac death in high-risk patients. Like a pacemaker, ICDs are implanted under the skin. Wires cal ...
Chest Pain and the BLS Provider
... • Left ventricle fails to pump forward • Blood backs up into pulmonary circulation • Characterized by: ...
... • Left ventricle fails to pump forward • Blood backs up into pulmonary circulation • Characterized by: ...
Document
... outflow tracts of both ventricles. The distal part of the bulbus, the truncus arteriosus, will form the roots and proximal portion of the aorta and pulmonary artery ...
... outflow tracts of both ventricles. The distal part of the bulbus, the truncus arteriosus, will form the roots and proximal portion of the aorta and pulmonary artery ...
WQRS-internist
... QTU interval in the sinus beats is at least 600 milliseconds. Note TU wave alternans in the first and second complexes. A late premature complex occurring in the downslope of the TU wave initiates an episode of ventricular tachycardia ...
... QTU interval in the sinus beats is at least 600 milliseconds. Note TU wave alternans in the first and second complexes. A late premature complex occurring in the downslope of the TU wave initiates an episode of ventricular tachycardia ...
Feature Extraction from Heart sound signal for Anomaly Detection
... bioelectric potential with respect to time as the human heart beats. ECG signals, considered as representative signals of cardiac physiology, are strong tools in diagnosing cardiac disorder. It provides valuable information about the functional aspects of the heart and cardiovascular system. ...
... bioelectric potential with respect to time as the human heart beats. ECG signals, considered as representative signals of cardiac physiology, are strong tools in diagnosing cardiac disorder. It provides valuable information about the functional aspects of the heart and cardiovascular system. ...
ECG Findings in Active Patients
... In 10% to 33% of athletes, ECGs reveal a delay in conduction through the atrioventricular (AV) node with first-degree AV block (defined as a PR interval >0.20) (2,14,15). Similar to sinus bradycardia, this phenomenon is generally attributed to enhanced vagal tone. First-degree AV and Wenckebach-type ...
... In 10% to 33% of athletes, ECGs reveal a delay in conduction through the atrioventricular (AV) node with first-degree AV block (defined as a PR interval >0.20) (2,14,15). Similar to sinus bradycardia, this phenomenon is generally attributed to enhanced vagal tone. First-degree AV and Wenckebach-type ...
Rate and rhythm control showed similar symptom improvement in
... tolerance than rate control. This benefit came at a cost: more hospital admissions for electrical cardioversion or drug toxicity in the rhythm control group. Despite improved exercise tolerance in the amiodarone group, the groups did not differ for symptoms (palpitations, dyspnoea, or dizziness) or ...
... tolerance than rate control. This benefit came at a cost: more hospital admissions for electrical cardioversion or drug toxicity in the rhythm control group. Despite improved exercise tolerance in the amiodarone group, the groups did not differ for symptoms (palpitations, dyspnoea, or dizziness) or ...
Normal Sinus Rhythm
... • The cycle then repeats itself once again. • May be seen in individuals with high vagal tone especial during sleep. • Where it occurs in complication of inferior MI, it does not usually require a pacemaker and often may be reversed with myocardial reperfusion. © Hayley Coxon 2014 ...
... • The cycle then repeats itself once again. • May be seen in individuals with high vagal tone especial during sleep. • Where it occurs in complication of inferior MI, it does not usually require a pacemaker and often may be reversed with myocardial reperfusion. © Hayley Coxon 2014 ...
Shone`s Syndrome - Children`s Heart Clinic
... ventricle to the body. Subaortic obstruction due to narrowing of the left ventricular outflow tract may be worse if thickened papillary muscles are present. These left-sided heart problems and associated symptoms get worse over time without treatment. Shone’s syndrome occurs in less than 1% of all c ...
... ventricle to the body. Subaortic obstruction due to narrowing of the left ventricular outflow tract may be worse if thickened papillary muscles are present. These left-sided heart problems and associated symptoms get worse over time without treatment. Shone’s syndrome occurs in less than 1% of all c ...
Shone`s Syndrome - The Children`s Heart Clinic, PA
... ventricle to the body. Subaortic obstruction due to narrowing of the left ventricular outflow tract may be worse if thickened papillary muscles are present. These left-sided heart problems and associated symptoms get worse over time without treatment. Shone’s syndrome occurs in less than 1% of all c ...
... ventricle to the body. Subaortic obstruction due to narrowing of the left ventricular outflow tract may be worse if thickened papillary muscles are present. These left-sided heart problems and associated symptoms get worse over time without treatment. Shone’s syndrome occurs in less than 1% of all c ...
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.