12 The Circulatory System
... the heart and the conduction system of the heart, consisting of fibers with both muscular and nervous characteristics, conducts impulses through the myocardium thus producing muscular contractions. These muscular contractions comprise the cardiac cycle. During the cardiac cycle, both atria contract ...
... the heart and the conduction system of the heart, consisting of fibers with both muscular and nervous characteristics, conducts impulses through the myocardium thus producing muscular contractions. These muscular contractions comprise the cardiac cycle. During the cardiac cycle, both atria contract ...
Heart Failure
... damaged hearts and no symptoms as yet. Risk of heart failure greater in men but more women with HF. Incidence and prevalence rise with age1 in 35 aged 64-74 1 in 15 aged 75-84 1 in 7 aged 85 & over ...
... damaged hearts and no symptoms as yet. Risk of heart failure greater in men but more women with HF. Incidence and prevalence rise with age1 in 35 aged 64-74 1 in 15 aged 75-84 1 in 7 aged 85 & over ...
Left Superior Vena Cava - Left Atrium
... rium (5), an intraatrial baffle to divert flow from the LSVC to the right atrium and close the atrial septal defect, or anastomosis of the LSVC to the left pulmonary artery (1) should be performed to restore the continuity of systemic venous return. Alternatively, transcatheter closure of LSVC by oc ...
... rium (5), an intraatrial baffle to divert flow from the LSVC to the right atrium and close the atrial septal defect, or anastomosis of the LSVC to the left pulmonary artery (1) should be performed to restore the continuity of systemic venous return. Alternatively, transcatheter closure of LSVC by oc ...
The Heart - El Camino College
... G. Disorders (________________) of the Conduction System include: 1. _______________ – faster than normal heart rate (100 bpm or more) 2. _______________ – slower than normal heart rate (60 bpm or less) 3. __________ – rapid heart rate (250-350 bpm), with controlled contractions 4. Heart ________ – ...
... G. Disorders (________________) of the Conduction System include: 1. _______________ – faster than normal heart rate (100 bpm or more) 2. _______________ – slower than normal heart rate (60 bpm or less) 3. __________ – rapid heart rate (250-350 bpm), with controlled contractions 4. Heart ________ – ...
Learning Objectives
... 9. Describe the role of genetics in the etiology of the primary cardiomyopathies. 10. Differentiate among the pathophysiologic changes that occur with hypertrophic cardiomyopathy, arrhythmogenic right ventricular cardiomyopathy, dilated cardiomyopathies, and myocarditis. 11. List four causes of seco ...
... 9. Describe the role of genetics in the etiology of the primary cardiomyopathies. 10. Differentiate among the pathophysiologic changes that occur with hypertrophic cardiomyopathy, arrhythmogenic right ventricular cardiomyopathy, dilated cardiomyopathies, and myocarditis. 11. List four causes of seco ...
22. congenital cardiopathies
... conducted beyond apex • Presence of mid-diastolic ,low pitched rumble at the apex is caused by increased flow across the mitral valve &indicates Qp:Qs=2:1/greater • Maladie de Roger –small VSD presenting in older children as a loud PSM w/o other significant hemodynamic changes ...
... conducted beyond apex • Presence of mid-diastolic ,low pitched rumble at the apex is caused by increased flow across the mitral valve &indicates Qp:Qs=2:1/greater • Maladie de Roger –small VSD presenting in older children as a loud PSM w/o other significant hemodynamic changes ...
2015 Unit 5 Cardiovascular System Exam Version 2
... As patients get older, your ▓▓▓▓▓▓▓▓▓▓▓▓▓▓ can lose elasticity causing them to stretch. The valves in your ▓▓▓▓▓▓▓▓▓▓ may become weak, allowing blood that should be moving toward your heart to flow backward. Blood pools in ▓▓▓▓▓▓▓▓▓▓, and ▓▓▓▓▓▓▓▓▓▓▓ enlarge and become varicose. The ▓▓▓▓▓▓▓▓▓▓▓ appe ...
... As patients get older, your ▓▓▓▓▓▓▓▓▓▓▓▓▓▓ can lose elasticity causing them to stretch. The valves in your ▓▓▓▓▓▓▓▓▓▓ may become weak, allowing blood that should be moving toward your heart to flow backward. Blood pools in ▓▓▓▓▓▓▓▓▓▓, and ▓▓▓▓▓▓▓▓▓▓▓ enlarge and become varicose. The ▓▓▓▓▓▓▓▓▓▓▓ appe ...
The Heart and Circulation
... Cusps anchored in Rt. Ventricle by Chordae Tendinae Chordae Tendinae prevent inversion of cusps into atrium Flow of blood pushes cusps open When ventricle is in diastole (relaxed), cusps hang limp in ventricle – Ventricular contraction increases pressure and forces cusps closed ...
... Cusps anchored in Rt. Ventricle by Chordae Tendinae Chordae Tendinae prevent inversion of cusps into atrium Flow of blood pushes cusps open When ventricle is in diastole (relaxed), cusps hang limp in ventricle – Ventricular contraction increases pressure and forces cusps closed ...
Heart dissection
... inside, but when you open it up, it’s one big goopy mess and it’s always hard to figure anything out. Don’t panic if it doesn’t look familiar at first. Be patient, poke around, look at the picture, and try to figure out what you can. It’s okay if you can’t find everything; you’re looking at a real o ...
... inside, but when you open it up, it’s one big goopy mess and it’s always hard to figure anything out. Don’t panic if it doesn’t look familiar at first. Be patient, poke around, look at the picture, and try to figure out what you can. It’s okay if you can’t find everything; you’re looking at a real o ...
The Heart and Circulation
... Cusps anchored in Rt. Ventricle by Chordae Tendinae Chordae Tendinae prevent inversion of cusps into atrium Flow of blood pushes cusps open When ventricle is in diastole (relaxed), cusps hang limp in ventricle – Ventricular contraction increases pressure and forces cusps closed ...
... Cusps anchored in Rt. Ventricle by Chordae Tendinae Chordae Tendinae prevent inversion of cusps into atrium Flow of blood pushes cusps open When ventricle is in diastole (relaxed), cusps hang limp in ventricle – Ventricular contraction increases pressure and forces cusps closed ...
Chapter 8 The Heart and Lungs at Work
... through tricuspid valve 3.Right ventricle pumps deoxygenated blood through pulmonary valve to lungs via pulmonary artery ...
... through tricuspid valve 3.Right ventricle pumps deoxygenated blood through pulmonary valve to lungs via pulmonary artery ...
2. The Transport System
... As the blood enters and begins to fill the atria the pressure builds up and opens the atrioventricular valves so a little blood starts to trickle into the ventricles. As the atria contracts (heartbeat) = atrial systole; all the rest of the blood is forced into the ventricles (sphincter muscles s ...
... As the blood enters and begins to fill the atria the pressure builds up and opens the atrioventricular valves so a little blood starts to trickle into the ventricles. As the atria contracts (heartbeat) = atrial systole; all the rest of the blood is forced into the ventricles (sphincter muscles s ...
Chapter 20
... Right- pumps deoxygenated blood to lungs Left- pumps oxygenated blood to systemic circ Myocardium much thicker than right ventricle ...
... Right- pumps deoxygenated blood to lungs Left- pumps oxygenated blood to systemic circ Myocardium much thicker than right ventricle ...
Basics of Medical Equipment Lecture 5 - O6U E
... (PaCo2), acidity (pH), oxyhemoglobin saturation (SaO2), and bicarbonate (HCO3) concentration in arterial blood. ...
... (PaCo2), acidity (pH), oxyhemoglobin saturation (SaO2), and bicarbonate (HCO3) concentration in arterial blood. ...
Cardio61-PericardiumAndHeart
... 3. Serves as a lubricated container in which the different parts of the heart can contract 4. Lies in the middle mediastinum (middle plate), posterior to the sternum, from 2nd to 6th costal cartilage 5. Composed of fibrous and serous pericardium 6. Pericardial sac is fairly thin unless there’s longs ...
... 3. Serves as a lubricated container in which the different parts of the heart can contract 4. Lies in the middle mediastinum (middle plate), posterior to the sternum, from 2nd to 6th costal cartilage 5. Composed of fibrous and serous pericardium 6. Pericardial sac is fairly thin unless there’s longs ...
Cardiol lab continued
... One located between each of the atrial-ventriclular junction Prevent __________________of blood from the ventricles into the atria during a contraction Blood filling the ventricles closes the valves _________________ attach the flaps to intraventricular muscles called___________________. During the ...
... One located between each of the atrial-ventriclular junction Prevent __________________of blood from the ventricles into the atria during a contraction Blood filling the ventricles closes the valves _________________ attach the flaps to intraventricular muscles called___________________. During the ...
Chapter01_Detailed_Answers
... contraction) multiplied by the heart rate. A decrease in either the stroke volume or the heart rate can decrease cardiac output. ...
... contraction) multiplied by the heart rate. A decrease in either the stroke volume or the heart rate can decrease cardiac output. ...
Bio212-Mammalian Heart Dissection Instructions
... Left ventricle - lower chamber to your right Right atria - upper chamber to your left Right ventricle - lower chamber to your left The atriums are wrinkled, somewhat flimsy dark red chambers with flap-like extensions. 10. Relocate the great vessels at the base of the heart and make sure you had the ...
... Left ventricle - lower chamber to your right Right atria - upper chamber to your left Right ventricle - lower chamber to your left The atriums are wrinkled, somewhat flimsy dark red chambers with flap-like extensions. 10. Relocate the great vessels at the base of the heart and make sure you had the ...
Atrioventricular Canal Defect
... What can be done about the defect? An AV canal can be fixed. Open-heart surgery is needed to repair the defect. Unlike some other types of septal defects, the AV canal defect can’t close on its own. Medicines may be used temporarily to help with symptoms, but they don’t cure the defect or prevent pe ...
... What can be done about the defect? An AV canal can be fixed. Open-heart surgery is needed to repair the defect. Unlike some other types of septal defects, the AV canal defect can’t close on its own. Medicines may be used temporarily to help with symptoms, but they don’t cure the defect or prevent pe ...
Figure 11.2c - BradyGreatPath
... is picked up and carbon dioxide is dropped off by blood in the lungs Oxygen-rich blood returns to the heart through the four pulmonary veins Blood enters the left atrium and travels through the bicuspid valve into the left ventricle From the left ventricle, blood leaves the heart via the aorti ...
... is picked up and carbon dioxide is dropped off by blood in the lungs Oxygen-rich blood returns to the heart through the four pulmonary veins Blood enters the left atrium and travels through the bicuspid valve into the left ventricle From the left ventricle, blood leaves the heart via the aorti ...
NAME______________________________________ What is a
... How do artificial valves work? As the heart muscle contracts and relaxes, the valves open and shut, letting blood flow into the ventricles and atria at alternate times. ...
... How do artificial valves work? As the heart muscle contracts and relaxes, the valves open and shut, letting blood flow into the ventricles and atria at alternate times. ...
File - Mr. Graff`s Science Room
... Heart valves There are valves in the heart that prevent blood from flowing backwards There are 2 atrioventricular (AV) valves - these separate the atria and ventricles -One in between the left atrium and left ventricle, and the other in between the right atrium and right ventricle -There are 2 semi ...
... Heart valves There are valves in the heart that prevent blood from flowing backwards There are 2 atrioventricular (AV) valves - these separate the atria and ventricles -One in between the left atrium and left ventricle, and the other in between the right atrium and right ventricle -There are 2 semi ...
Lutembacher's syndrome
Lutembacher's syndrome is a form of congenital heart disease. Lutembacher's syndrome was first described by a French cardiologist by the name of Rene' Lutembacher (1884–1968) of Paris, France in 1916. Lutembacher syndrome is a rare disease that affects one of the chambers of the heart as well as a valve of the heart. Lutembacher's syndrome is known to affect females more often than males. Lutembacher is an extremely rare disease. Lutembacher's can affect children or adults; the person can either be born with the disorder or develop it later in life.Lutembacher affects more specifically the atria of the heart and the mitral or biscupid valve. The disorder itself is known more specifically as both congenital atrial septal defect (ASD) and acquired mitral stenosis (MS). Congenital (at birth) atrial septal defect refers to a hole being in the septum or wall that separates the two atria; this condition is usually seen in fetuses and infants. Mitral stenosis refers to mitral valve leaflets (or valve flaps) sticking to each other making the opening for blood to pass from the atrium to the ventricles very small. With the valve being so small, blood has difficulty passing through the left atrium into the left ventricle. There are several types of septal defects that may occur with Lutembacher's syndrome: ASD Ostium Secundum or ASD (Primium); Ostium Secundum is the most prevalent.Lutembacher is caused indirectly as the result of heart damage or disorders and not something that is necessarily infectious. Lutembacher's syndrome is caused by either birth defects where the heart fails to close all holes in the walls between the atria or from an episode of rheumatic fever where damage is done to the heart valves such as the mitral valve and resultant in an opening of heart wall between atria. With Lutembacher's syndrome, a fetus or infant is usually seen to have a hole in their heart wall (interatrial) separating their right and left atria. Normally during fetal development, blood bypasses the lungs and is oxygenated from the placenta. Blood passes from the umbilical cord and flows into the left atrium through an opening called the foramen ovale; the formaen ovale is a hole between the two atria. Once a baby is born and the lungs begin to fill with air and the blood flow of the heart changes, a tissue flap (somewhat like a trap door) called the septum primium closes the foramen ovale or hole between the two atria and becomes part of the atrial wall. The failure of the hole between the two atria to close after birth leads to a disorder called ASD primium. The most common problems with an opening found in the heart with Lutembacher's syndrome is Ostium Secundum. Ostium Secundum is a hole that is found within the flap of tissue (septum primium) that will eventually close the hole between the two atria after birth. With either type of ASD, ASD will usually cause the blood flow from the right atrium to skip going to the right ventricle and instead flow to the left atrium. If mitral stenosis (the hardening of flap of tissue known as a valve which opens and closes between the left atrium and ventricle to control blood flow) is also present, blood will flow into the right atrium through the hole between the atria wall instead of flowing into the left ventricle and systemic circulation. Eventually this leads to other problems such as the right ventricle failing and a reduced blood flow to the left ventricle.In addition to the ASD, acquired MS can be present either from an episode of rheumatic fever (the mother has or had rheumatic fever during the pregnancy) or the child being born with the disorder (congenital MS). With the combination of both ASD and MS, the heart can be under severe strain as it tries to move blood throughout the heart and lungs. To correct Lutembacher's syndrome, surgery is often done. There are several types of surgeries depending on the cause of Lutembacher's syndrome(ASD Primium or ASD Ostium Secundum with Mitral Stenosis): Suturing (stitching) or placing a patch of tissue (similar to skin grafting) over the hole to completely close the opening Reconstructing of the mitral and tricuspid valve while patching any holes in the heart Device closure of ASD (e.g. Amplatzer umbrella or CardioSEAL to seal the hole Percutaneous transcatheter therapy Transcatheter therapy of balloon valvuloplasty to correct MS↑ ↑ 2.0 2.1 2.2 2.3 2.4 ↑ 3.0 3.1 3.2 3.3 3.4 ↑ ↑ ↑ 6.0 6.1 6.2 6.3 ↑