Skipping the Beat The “Beatless” Heart
... • Blood pushes through each of the heart's four chambers • The pulse or “beat” allows for blood to circulate through the body efficiently Rather than using a “beating” mechanism that would mimic the body’s heart, Dr. Cohn and Dr. Frazier devised a system entirely different. • They interconnected two ...
... • Blood pushes through each of the heart's four chambers • The pulse or “beat” allows for blood to circulate through the body efficiently Rather than using a “beating” mechanism that would mimic the body’s heart, Dr. Cohn and Dr. Frazier devised a system entirely different. • They interconnected two ...
Glossary of Cardiology Terms
... Automated External Defibrillator (AED): an external device that can be used by minimally trained people in emergency situations to deliver an electric shock to “reset” a heart that is fibrillating (quivering instead of pumping) Anti-Tachycardia Pacing (ATP): ATP is a form of ICD therapy that uses pa ...
... Automated External Defibrillator (AED): an external device that can be used by minimally trained people in emergency situations to deliver an electric shock to “reset” a heart that is fibrillating (quivering instead of pumping) Anti-Tachycardia Pacing (ATP): ATP is a form of ICD therapy that uses pa ...
Sinus_Bradycardia
... Stimulation of carotid sinus baroreceptors results in increased parasympathetic stimulation that decreases the heart rate. ...
... Stimulation of carotid sinus baroreceptors results in increased parasympathetic stimulation that decreases the heart rate. ...
Anatomy and Physiology
... • Muscle cells in conducting system coordinate beat • Contractile cells contract to propel blood • Electrocardiograph (ECG, EKG) shows electrical events of heart beat • App called cardiograph ...
... • Muscle cells in conducting system coordinate beat • Contractile cells contract to propel blood • Electrocardiograph (ECG, EKG) shows electrical events of heart beat • App called cardiograph ...
Anatomy and Physiology
... • Muscle cells in conducting system coordinate beat • Contractile cells contract to propel blood • Electrocardiograph (ECG, EKG) shows electrical events of heart beat • App called cardiograph ...
... • Muscle cells in conducting system coordinate beat • Contractile cells contract to propel blood • Electrocardiograph (ECG, EKG) shows electrical events of heart beat • App called cardiograph ...
Electrical Activity of the Heart
... within the AV bundle and the bundle branches to the Purkinje fibers Step 5: The impulse is distributed by Purkinje fibers and relayed throughout the ventricular myocardium. Atrial contraction is completed, and ventricular contraction begins ...
... within the AV bundle and the bundle branches to the Purkinje fibers Step 5: The impulse is distributed by Purkinje fibers and relayed throughout the ventricular myocardium. Atrial contraction is completed, and ventricular contraction begins ...
![Cardio Review 4 Quince [CAPT],Joan,Juliet](http://s1.studyres.com/store/data/008476689_1-582bb2f244943679cde904e2d5670e20-300x300.png)
Cardio Review 4 Quince [CAPT],Joan,Juliet
... pressure is 120 mm Hg and the diastolic blood pressure is 80 mm Hg ...
... pressure is 120 mm Hg and the diastolic blood pressure is 80 mm Hg ...
Cardiac Rhythm - WordPress.com
... • Calcium rushes in, causing muscle contraction • Na channels are closing now ...
... • Calcium rushes in, causing muscle contraction • Na channels are closing now ...
The Heartbeat
... • Reach threshold first • Set heart rate • Conducting cells • Distributes stimuli to myocardium Copyright © 2007 Pearson Education, Inc., publishing as Benjamin Cummings ...
... • Reach threshold first • Set heart rate • Conducting cells • Distributes stimuli to myocardium Copyright © 2007 Pearson Education, Inc., publishing as Benjamin Cummings ...
File
... Semilunar Valves • Lie between ventricles and great vessels • Pulmonary on right side • Aortic on left side ...
... Semilunar Valves • Lie between ventricles and great vessels • Pulmonary on right side • Aortic on left side ...
File
... Semilunar Valves • Lie between ventricles and great vessels • Pulmonary on right side • Aortic on left side ...
... Semilunar Valves • Lie between ventricles and great vessels • Pulmonary on right side • Aortic on left side ...
ECG - WordPress.com
... Electrocardiograph is a transthoracic interpretation of the electrical activity of the heart over time captured and externally recorded by skin electrodes. It is a noninvasive recording produced by an electrocardiographic device. The ECG works mostly by detecting and amplifying the tiny electrical c ...
... Electrocardiograph is a transthoracic interpretation of the electrical activity of the heart over time captured and externally recorded by skin electrodes. It is a noninvasive recording produced by an electrocardiographic device. The ECG works mostly by detecting and amplifying the tiny electrical c ...
Syncope
... "venous return"), (the fuel), 2) myocardial contractility (heart muscle function), (the pump), and 3) afterload (systemic vascular resistance) (the pipes). Children are particularly dependent upon adequate intravascular volume, and when volume depleted, they peripherally vasoconstrict to maintain st ...
... "venous return"), (the fuel), 2) myocardial contractility (heart muscle function), (the pump), and 3) afterload (systemic vascular resistance) (the pipes). Children are particularly dependent upon adequate intravascular volume, and when volume depleted, they peripherally vasoconstrict to maintain st ...
Pediatric Cardiac Rhythm Analysis for the Non
... Electrical Impulse flows through Normal Conduction Pathway Age Ranges for Normal Sinus Rhythm (NSR) Newborn to 12 months = 100-180 1- 3 years = 90 - 150 3 - 5 years = 70 - 140 5 – 8 years = 65 – 130 8 years and older = 60 – 110 ...
... Electrical Impulse flows through Normal Conduction Pathway Age Ranges for Normal Sinus Rhythm (NSR) Newborn to 12 months = 100-180 1- 3 years = 90 - 150 3 - 5 years = 70 - 140 5 – 8 years = 65 – 130 8 years and older = 60 – 110 ...
File
... – Atrioventricular (AV) Node – After current passes through the SA node, it moves here. Delays impulse to allow atria to complete contraction before ventricles contract. Located in the septum above the tricuspid valve. ...
... – Atrioventricular (AV) Node – After current passes through the SA node, it moves here. Delays impulse to allow atria to complete contraction before ventricles contract. Located in the septum above the tricuspid valve. ...
Chapter41 - Hatzalah of Miami-Dade
... Ventricular Fibrillation • Rapid, completely disorganized rhythm • Deadly arrhythmia that requires immediate treatment ...
... Ventricular Fibrillation • Rapid, completely disorganized rhythm • Deadly arrhythmia that requires immediate treatment ...
Antiarrythmic drugs
... sustained by the balance between the inward movement of Ca+ and outward movement of K + Has a long duration compared to other nerve and muscle tissue Normally blocks any premature stimulator signals (other muscle tissue can accept additional stimulation and increase contractility in a ...
... sustained by the balance between the inward movement of Ca+ and outward movement of K + Has a long duration compared to other nerve and muscle tissue Normally blocks any premature stimulator signals (other muscle tissue can accept additional stimulation and increase contractility in a ...
Laboratory Exercise 13: Cardiac Physiology
... depolarize itself (start an electric current) and initiate its own contraction. To coordinate the electrical impulses, the heart evolved a conduction system. The conduction system’s purpose is to ensure that the contractile cardiac muscle contracts in an orderly and sequential manner and that the im ...
... depolarize itself (start an electric current) and initiate its own contraction. To coordinate the electrical impulses, the heart evolved a conduction system. The conduction system’s purpose is to ensure that the contractile cardiac muscle contracts in an orderly and sequential manner and that the im ...
2 Guided notes slides 31-end - Liberty Union High School District
... and serves as the gateway to the _______________. It delays the passage of electrical stimulation to the ventricles to insure that the atria have ejected all the blood into the ventricles first. AV node receives signals from the SA node and passes them onto the _________________________, known as th ...
... and serves as the gateway to the _______________. It delays the passage of electrical stimulation to the ventricles to insure that the atria have ejected all the blood into the ventricles first. AV node receives signals from the SA node and passes them onto the _________________________, known as th ...
Mechanisms of Tachycardia
... ○ ICDs were designed to treat this type of VT ○ Often involves an area of fibrosis on the heart (possibly from prior heart attack or ischemia) • Disrupted electrical pathways • Areas of slow conduction • Scar tissue can be ablated but ablation may just leave new scar tissue! ...
... ○ ICDs were designed to treat this type of VT ○ Often involves an area of fibrosis on the heart (possibly from prior heart attack or ischemia) • Disrupted electrical pathways • Areas of slow conduction • Scar tissue can be ablated but ablation may just leave new scar tissue! ...
What is Sudden Cardiac Arrest? Occurs suddenly and often without
... An electrical malfunction (short-circuit) causes the bottom chambers of the heart (ventricles) to beat dangerously fast (ventricular tachycardia or fibrillation) and disrupts the pumping ability of the heart. The heart cannot pump blood to the brain, lungs and other organs of the body. The pers ...
... An electrical malfunction (short-circuit) causes the bottom chambers of the heart (ventricles) to beat dangerously fast (ventricular tachycardia or fibrillation) and disrupts the pumping ability of the heart. The heart cannot pump blood to the brain, lungs and other organs of the body. The pers ...
Setting the Heart`s Tempo
... stems from the ability of this muscle to contract without being stimulated by external nerves. Muscle with this ability, called myogenic muscle, explains why the heart will continue to beat, at least for a short time, when removed from the body. The heart’s tempo or beat rate is set by the sinoatria ...
... stems from the ability of this muscle to contract without being stimulated by external nerves. Muscle with this ability, called myogenic muscle, explains why the heart will continue to beat, at least for a short time, when removed from the body. The heart’s tempo or beat rate is set by the sinoatria ...