The Electrocardiogram
... Designed to promote forward flow Valves close to prevent backflow Made of fibrous tissue that has grown out of the walls of the heart 2 types: Atrioventricular (AV) (separate chambers) Semilunar (separate chamber/vessel) ...
... Designed to promote forward flow Valves close to prevent backflow Made of fibrous tissue that has grown out of the walls of the heart 2 types: Atrioventricular (AV) (separate chambers) Semilunar (separate chamber/vessel) ...
14 Heart Q
... What condition is when the ventricles are unable to pump blood efficiently due to rapid, random contraction of cardiac muscle fibers. The muscle doesn’t contract as a unit. ...
... What condition is when the ventricles are unable to pump blood efficiently due to rapid, random contraction of cardiac muscle fibers. The muscle doesn’t contract as a unit. ...
The basic`s of a 12 lead ECG part 1
... What is an ECG? A recording which measures the electrical activity and the rhythm of your heart Extremely common test used across the hospital for a range of medical conditions. Indications include: - chest pain ...
... What is an ECG? A recording which measures the electrical activity and the rhythm of your heart Extremely common test used across the hospital for a range of medical conditions. Indications include: - chest pain ...
Slide ()
... lines in ventral view. The white arrowheads in (b′)–(d′) mark the position of a cluster of beads used to visualize HT rotation; rotation angle θ is defined by orientation of lumen, as shown in (b″). ((a)–(a″)) Stage-10 heart with SPL intact. ((b)–(b″)) The heart with SPL removed after 3 h culture. ( ...
... lines in ventral view. The white arrowheads in (b′)–(d′) mark the position of a cluster of beads used to visualize HT rotation; rotation angle θ is defined by orientation of lumen, as shown in (b″). ((a)–(a″)) Stage-10 heart with SPL intact. ((b)–(b″)) The heart with SPL removed after 3 h culture. ( ...
Pathological Conditions: The Heart and Blood Vessels
... If failure occurs only occasionally causing heart to miss beat at regular intervals – partial heart block No impulses reach AV node from SA node means ventricles contract ...
... If failure occurs only occasionally causing heart to miss beat at regular intervals – partial heart block No impulses reach AV node from SA node means ventricles contract ...
Systemic and Pulmonary Circulation
... • Sinus arrhythmia: Heart rate varies 5% during respiratory cycle and up to 30% during deep respiration • Premature atrial contractions: Occasional shortened intervals between one contraction and succeeding, frequently occurs in healthy people ...
... • Sinus arrhythmia: Heart rate varies 5% during respiratory cycle and up to 30% during deep respiration • Premature atrial contractions: Occasional shortened intervals between one contraction and succeeding, frequently occurs in healthy people ...
الشريحة 1
... that is its ability to initiate its own rhythmic contractions without requiring a stimulation from outside the heart . This automaticity is believed to be due to “leaky” cell membranes , in which the sodium ions slowly leak into the cells. The cells that are most “leaky” to sodium and that depol ...
... that is its ability to initiate its own rhythmic contractions without requiring a stimulation from outside the heart . This automaticity is believed to be due to “leaky” cell membranes , in which the sodium ions slowly leak into the cells. The cells that are most “leaky” to sodium and that depol ...
Lecture 8
... The mammalian heart is a double pump in which the right side operates as a low-pressure system delivering de-oxygenated blood to the lungs, while the left side is a high pressure system delivering oxygenated blood to the rest of the body. The walls of the right ventricle are much thinner than those ...
... The mammalian heart is a double pump in which the right side operates as a low-pressure system delivering de-oxygenated blood to the lungs, while the left side is a high pressure system delivering oxygenated blood to the rest of the body. The walls of the right ventricle are much thinner than those ...
File
... The Endocardium is the inner layer of the heart and consists of epithelial tissue and connective tissue. This is also the layer which Purjinkie cells are present. It serves as the inner lining f the heart, covering all the inner cavities and the valves. The Myocardium is the middle layer of the hear ...
... The Endocardium is the inner layer of the heart and consists of epithelial tissue and connective tissue. This is also the layer which Purjinkie cells are present. It serves as the inner lining f the heart, covering all the inner cavities and the valves. The Myocardium is the middle layer of the hear ...
2-heart sounds2016-02-28 01:214.4 MB
... Second heart sound (S2) • It is always normal. It sounds as “dub”. It is also called S2. • It is usually short and sharp in nature. • It is caused by the closure of semi-lunar valves. • It is best heard when auscultated at aortic and pulmonary areas. • It occurs at the beginning of ventricular dias ...
... Second heart sound (S2) • It is always normal. It sounds as “dub”. It is also called S2. • It is usually short and sharp in nature. • It is caused by the closure of semi-lunar valves. • It is best heard when auscultated at aortic and pulmonary areas. • It occurs at the beginning of ventricular dias ...
Approach to bradycardia
... sinus node. There is failure of the heart rate to elevate in response to exercise or stress. In children, this is most commonly seen following surgical correction of congenital heart defects. Myocardial diseases such as cardiomyopathies, inflammatory or ischemic myocardial diseases as well as conduc ...
... sinus node. There is failure of the heart rate to elevate in response to exercise or stress. In children, this is most commonly seen following surgical correction of congenital heart defects. Myocardial diseases such as cardiomyopathies, inflammatory or ischemic myocardial diseases as well as conduc ...
The heart rate
... pressure on carotid sinus area, reflex slowing of heart rate and vasodilation. reflex increase in the vagal tone (bradycardia) and decrease in the sympathetic vasoconstrictor tone (vasodilation). ...
... pressure on carotid sinus area, reflex slowing of heart rate and vasodilation. reflex increase in the vagal tone (bradycardia) and decrease in the sympathetic vasoconstrictor tone (vasodilation). ...
(Heart) Pre and Post Assessment
... B) Heart dams C) Kidneys D) Chambers Q.8 What organ removes waste from blood? A) Heart B) Lungs C) Eyes ...
... B) Heart dams C) Kidneys D) Chambers Q.8 What organ removes waste from blood? A) Heart B) Lungs C) Eyes ...
File
... o Heart relaxes and fills with blood to be ejected during the nest systolic contraction ...
... o Heart relaxes and fills with blood to be ejected during the nest systolic contraction ...
Cardovascular System The Heart Chap. 12
... Myocardium receives oxygenated blood from the left & right Coronary arteries – branches off the ascending aorta Deoxygenated blood is drained through Cardiac veins, which all eventually merge into the coronary sinus ...
... Myocardium receives oxygenated blood from the left & right Coronary arteries – branches off the ascending aorta Deoxygenated blood is drained through Cardiac veins, which all eventually merge into the coronary sinus ...
A-A Au Catheter Ablation for Cardiac Arrhythmias Booklet.indd
... direction, due to extra electrical connections known as ‘pathways’, or due to extra electrical cells within the heart. Often these pathways are present at birth, but may only start to work in adulthood. When the heart has an extra beat (an ectopic), it can travel up the pathway and travel down the n ...
... direction, due to extra electrical connections known as ‘pathways’, or due to extra electrical cells within the heart. Often these pathways are present at birth, but may only start to work in adulthood. When the heart has an extra beat (an ectopic), it can travel up the pathway and travel down the n ...
Heart Anatomy and Cardiac Muscle Cell Structure
... This depolarization opens two types of Ca++ channels -T - type channels open briefly before inactivating - L - type channels then open finishing ...
... This depolarization opens two types of Ca++ channels -T - type channels open briefly before inactivating - L - type channels then open finishing ...
Acute management of myocardial infarction
... • If symptoms started less than 12 hours ago • If the “door to balloon” time can be less than 90 minutes • For STEMI patients. Can consider for NSTEMI patients ...
... • If symptoms started less than 12 hours ago • If the “door to balloon” time can be less than 90 minutes • For STEMI patients. Can consider for NSTEMI patients ...
Atrial Fibrillation: Does Your Heart Flutter, Flop, or Fly
... Heart failure occurs when the heart is damaged enough that it can’t adequately do its job of pumping blood through the body. ...
... Heart failure occurs when the heart is damaged enough that it can’t adequately do its job of pumping blood through the body. ...
Rate and sound of heart
... The second heart sound caused by closure of aortic and pulmonary valves,high pitch 50 Hz ,shorter time 0.11 second.it occurs at beginning of diastolic.it is heard as dup. The third heard sound it is caused by rapid Ventricular filling and inrush of blood, soft heard by stethoscope . The fourth sound ...
... The second heart sound caused by closure of aortic and pulmonary valves,high pitch 50 Hz ,shorter time 0.11 second.it occurs at beginning of diastolic.it is heard as dup. The third heard sound it is caused by rapid Ventricular filling and inrush of blood, soft heard by stethoscope . The fourth sound ...
Practical Approach to SVT - Department of Medicine UBC
... Overall rate of paroxysmal or chronic AF at 5 years: 63.2% ...
... Overall rate of paroxysmal or chronic AF at 5 years: 63.2% ...