Transport (Heart dis..
... Will the blood in left ventricle be mixed with that in right ventricle? What is the importance of this feature? No, it will not. This feature ensures that the oxygenated blood in the left chambers does not mix with the deoxygenated blood in the right chambers. In this way all organs (except the lung ...
... Will the blood in left ventricle be mixed with that in right ventricle? What is the importance of this feature? No, it will not. This feature ensures that the oxygenated blood in the left chambers does not mix with the deoxygenated blood in the right chambers. In this way all organs (except the lung ...
The Cardiovascular System: The Heart • Heart pumps over 1 million
... sarcoplasmic reticulum, while K+ channels close – Ca +2 binds to troponin to allow for actin-myosin cross-bridge formation & tension development • Repolarization – Ca+2 channels close and K+ channels open & -90mv is restored as potassium leaves the cell • Refractory period – very long so heart can f ...
... sarcoplasmic reticulum, while K+ channels close – Ca +2 binds to troponin to allow for actin-myosin cross-bridge formation & tension development • Repolarization – Ca+2 channels close and K+ channels open & -90mv is restored as potassium leaves the cell • Refractory period – very long so heart can f ...
Hypoplastic Left Heart Syndrome
... Hypoplastic Left Heart Syndrome (HLHS) is characterized by multiple small (hypo means small) structures on the left side of the heart. The hypoplastic structures include the mitral valve (1 in diagram below), aortic valve (2), and the left ventricle itself (3). In addition, the ascending aorta (4) i ...
... Hypoplastic Left Heart Syndrome (HLHS) is characterized by multiple small (hypo means small) structures on the left side of the heart. The hypoplastic structures include the mitral valve (1 in diagram below), aortic valve (2), and the left ventricle itself (3). In addition, the ascending aorta (4) i ...
Chapter 8
... Sustained elevation in blood pressure – Systolic pressure 140 mmHg – Diastolic pressure 90 mmHg Risk factor for cardiovascular disease Hypotension: When Blood Pressure Is Too Low Low blood pressure If low enough, may cause dizziness or fainting May follow abrupt changes in body posit ...
... Sustained elevation in blood pressure – Systolic pressure 140 mmHg – Diastolic pressure 90 mmHg Risk factor for cardiovascular disease Hypotension: When Blood Pressure Is Too Low Low blood pressure If low enough, may cause dizziness or fainting May follow abrupt changes in body posit ...
- OPENPediatrics
... Figure 6: Different phases of an ECG tracing INTRACARDIAC PRESSURES • Left sided cardiac pressures are usually 3x greater that right sided cardiac pressures • Normal right atrial pressure = 3 mmHg (2-8 mmHg) • Normal left atrial pressure = 8 mmHg (6-12 mmHg) ...
... Figure 6: Different phases of an ECG tracing INTRACARDIAC PRESSURES • Left sided cardiac pressures are usually 3x greater that right sided cardiac pressures • Normal right atrial pressure = 3 mmHg (2-8 mmHg) • Normal left atrial pressure = 8 mmHg (6-12 mmHg) ...
Chapter 12 A and B questions
... What is the importance of Ca++ induced- Ca++ release? Could this be considered an example of positive feedback? How is cytosolic Ca++ concentration related to the force of contraction of cardiac myofibers? Why can't the heart muscle experience summation or tetanic contraction? Why would tetanic cont ...
... What is the importance of Ca++ induced- Ca++ release? Could this be considered an example of positive feedback? How is cytosolic Ca++ concentration related to the force of contraction of cardiac myofibers? Why can't the heart muscle experience summation or tetanic contraction? Why would tetanic cont ...
study notes for test
... Systolic blood pressure (the upper number) — indicates how much pressure your blood is exerting against your artery walls when the heart beats. Diastolic blood pressure (the lower number) — indicates how much pressure your blood is exerting against your artery walls while the heart is resting betwee ...
... Systolic blood pressure (the upper number) — indicates how much pressure your blood is exerting against your artery walls when the heart beats. Diastolic blood pressure (the lower number) — indicates how much pressure your blood is exerting against your artery walls while the heart is resting betwee ...
The HEART - Cumberland Gap Health Science
... from the ventricles – Triscupid valve- between right atrium and ventricle – Bicuspid or Mitral valve-between left atrium and ventricle – Prevents backflow of blood into the atria when the ventricles contract – Chordae tendineae-attaches AV valves to the wall of the heart ...
... from the ventricles – Triscupid valve- between right atrium and ventricle – Bicuspid or Mitral valve-between left atrium and ventricle – Prevents backflow of blood into the atria when the ventricles contract – Chordae tendineae-attaches AV valves to the wall of the heart ...
Heart
... the time required to depolarize the ventricles. • A normal QRS is 0.08-0.12 s • > than 0.12 seconds is considered a BBB (block in a bundle branche, or the ...
... the time required to depolarize the ventricles. • A normal QRS is 0.08-0.12 s • > than 0.12 seconds is considered a BBB (block in a bundle branche, or the ...
Beachey Ch 16 Functional Anatomy Cardiovascular System
... down to the AV Node. Atrioventricular node (AV node) - Triggers initial contraction of ventricles. Trigger travels down the AV bundle. AV bundle aka “bundle of His”. The AV Bundle triggers down the right and left bundle branches. Bundle branches terminate into the Purkinje fibers Purkinje fibers car ...
... down to the AV Node. Atrioventricular node (AV node) - Triggers initial contraction of ventricles. Trigger travels down the AV bundle. AV bundle aka “bundle of His”. The AV Bundle triggers down the right and left bundle branches. Bundle branches terminate into the Purkinje fibers Purkinje fibers car ...
Kickin’ Cardiovascular System
... Pressure wave created by the expansion and recoil of an artery that occurs with each beat of the left ventricle. Average is 70-76 beats per minute Pulse points are listed in book. Take a look and try to find them on your body. ...
... Pressure wave created by the expansion and recoil of an artery that occurs with each beat of the left ventricle. Average is 70-76 beats per minute Pulse points are listed in book. Take a look and try to find them on your body. ...
cardiovascular powerpoint - Pregitzersninjascienceclasses
... Pressure wave created by the expansion and recoil of an artery that occurs with each beat of the left ventricle. Average is 70-76 beats per minute Pulse points are listed in book. Take a look and try to find them on your body. ...
... Pressure wave created by the expansion and recoil of an artery that occurs with each beat of the left ventricle. Average is 70-76 beats per minute Pulse points are listed in book. Take a look and try to find them on your body. ...
Ch428thed
... BP is greater in arteries than veins Pulse is measure of BP Exact BP is measured as systolic/diastolic pressures Constricted blood vessels have higher BP than dilated vessels In veins heart has little effect on BP How, then does blood move in veins? ...
... BP is greater in arteries than veins Pulse is measure of BP Exact BP is measured as systolic/diastolic pressures Constricted blood vessels have higher BP than dilated vessels In veins heart has little effect on BP How, then does blood move in veins? ...
File
... – The rim of each valve cusp is slightly thicker than the cusp body and is known as the lunula. The lunulae of adjacent cusps slightly overlap each other at the time of valve closure, serving a role of increased valve support. ...
... – The rim of each valve cusp is slightly thicker than the cusp body and is known as the lunula. The lunulae of adjacent cusps slightly overlap each other at the time of valve closure, serving a role of increased valve support. ...
2016_Cardiovascular_Assessment 4.0 MB
... Diagnosis: heart murmur may be heard in the pulmonary valve area because the heart is forcing an unusually large amount of blood through a normal sized valve. Echocardiogram is the primary method used to diagnose the defect – it can show the hole and its size and any enlargement of the right atrium ...
... Diagnosis: heart murmur may be heard in the pulmonary valve area because the heart is forcing an unusually large amount of blood through a normal sized valve. Echocardiogram is the primary method used to diagnose the defect – it can show the hole and its size and any enlargement of the right atrium ...
Chapter 20 The Cardiovascular System
... Right – pumps to lungs (pulmonary circulation) Left – pumps to the body (systemic circulation) ...
... Right – pumps to lungs (pulmonary circulation) Left – pumps to the body (systemic circulation) ...
Introduction to the Heart
... • The coronary arteries that nourish the myocardium arise from the _____________. • The ____________ are receiving chambers; the _________ are discharging chambers. • The muscular walls of the heart is called the _____________. • The myocardium of the ______ ventricle is much thicker than that of th ...
... • The coronary arteries that nourish the myocardium arise from the _____________. • The ____________ are receiving chambers; the _________ are discharging chambers. • The muscular walls of the heart is called the _____________. • The myocardium of the ______ ventricle is much thicker than that of th ...
PBS Lesson 4.1 Review
... • Mitral Valve Prolapse • Mitral valve doesn’t close properly. • Can lead to mitral valve regurgitation (some blood flows back into the L.A.). • Complications include arrhythmias and heart valve infection (endocarditis) ...
... • Mitral Valve Prolapse • Mitral valve doesn’t close properly. • Can lead to mitral valve regurgitation (some blood flows back into the L.A.). • Complications include arrhythmias and heart valve infection (endocarditis) ...
The Cardiovascular System
... • Two forms of bypass in the fetus. – Foramen ovale- between right and left atria. – Ductus arteriosis-if blood flows into right ventricle, then will go from pulmonary artery to aorta. – Deoxygenated blood is sent back to placenta via umbilical arteries to become oxygenated from mother. ...
... • Two forms of bypass in the fetus. – Foramen ovale- between right and left atria. – Ductus arteriosis-if blood flows into right ventricle, then will go from pulmonary artery to aorta. – Deoxygenated blood is sent back to placenta via umbilical arteries to become oxygenated from mother. ...
heart rate
... ventricular diastole –during this phase, ventricles fill with blood Ventricular Volume During the Cardiac Cycle - Ventricular volume is fairly high during relaxation, or diastole - During atrial systole- a little more blood is pushed into the ventricles, so the volume increases slightly - Ventricles ...
... ventricular diastole –during this phase, ventricles fill with blood Ventricular Volume During the Cardiac Cycle - Ventricular volume is fairly high during relaxation, or diastole - During atrial systole- a little more blood is pushed into the ventricles, so the volume increases slightly - Ventricles ...
The Cardiovascular System
... • Two forms of bypass in the fetus. – Foramen ovale- between right and left atria. – Ductus arteriosis-if blood flows into right ventricle, then will go from pulmonary artery to aorta. – Deoxygenated blood is sent back to placenta via umbilical arteries to become oxygenated from mother. ...
... • Two forms of bypass in the fetus. – Foramen ovale- between right and left atria. – Ductus arteriosis-if blood flows into right ventricle, then will go from pulmonary artery to aorta. – Deoxygenated blood is sent back to placenta via umbilical arteries to become oxygenated from mother. ...
Chapter 6 Questions
... Using a sphygmomanometer which constricts the brachial artery and then slowly allows the blood to pass through. (b) 125/90 What does this mean? It means that their systole pressure is 125 and their diastole is 90, Which isn't too far away from normal. ...
... Using a sphygmomanometer which constricts the brachial artery and then slowly allows the blood to pass through. (b) 125/90 What does this mean? It means that their systole pressure is 125 and their diastole is 90, Which isn't too far away from normal. ...
Artificial heart valve
An artificial heart valve is a device implanted in the heart of a patient with valvular heart disease. When one of the four heart valves malfunctions, the medical choice may be to replace the natural valve with an artificial valve. This requires open-heart surgery.Valves are integral to the normal physiological functioning of the human heart. Natural heart valves are evolved to forms that perform the functional requirement of inducing unidirectional blood flow through the valve structure from one chamber of the heart to another. Natural heart valves become dysfunctional for a variety of pathological causes. Some pathologies may require complete surgical replacement of the natural heart valve with a heart valve prosthesis.