9 Cardiovascular System
... • Which type of blood vessel (arteries or veins) has thicker walls? arteries • Which type of blood vessel has thinner walls? veins • Which type of blood vessel is more apt to lose its elasticity, leading to a discoloration that can be externally observed? veins What is this condition called? varicos ...
... • Which type of blood vessel (arteries or veins) has thicker walls? arteries • Which type of blood vessel has thinner walls? veins • Which type of blood vessel is more apt to lose its elasticity, leading to a discoloration that can be externally observed? veins What is this condition called? varicos ...
radiological aspects of pulmonary atresia with intact ventricular septum
... fills from the left ventricle: in the latter, an enlarged right ventricular cavity can usually be identified, and it may be noted that the aorta fills readily with contrast medium from the right ventricular chamber via the ventricular septal defect. Differentiation between pulmonary atresia with int ...
... fills from the left ventricle: in the latter, an enlarged right ventricular cavity can usually be identified, and it may be noted that the aorta fills readily with contrast medium from the right ventricular chamber via the ventricular septal defect. Differentiation between pulmonary atresia with int ...
The Cardiovascular System
... of the right atrium. It is called the SA node. It is also called the Pacemaker. Specialized fibers called the conduction system send impulses to the heart to beat approximately 60 – 100 times per minute. They stimulate the hearts chamber to contract. The SA node sets the pace and the rest of the hea ...
... of the right atrium. It is called the SA node. It is also called the Pacemaker. Specialized fibers called the conduction system send impulses to the heart to beat approximately 60 – 100 times per minute. They stimulate the hearts chamber to contract. The SA node sets the pace and the rest of the hea ...
Peer-reviewed Article PDF - e
... subsequently into the RA) and have no hemodynamic consequences [6]. The long term clinical course of such patients is usually uneventful in the absence of other congenital heart defects. In patients with accompanying congenital heart disease, their long term course is mostly influenced by particular ...
... subsequently into the RA) and have no hemodynamic consequences [6]. The long term clinical course of such patients is usually uneventful in the absence of other congenital heart defects. In patients with accompanying congenital heart disease, their long term course is mostly influenced by particular ...
Slide 1
... other. In a normal heart, the 2 great vessels should not appear together in any plane as they cross each other in their proximal course. The aorta here is anterior, not posterior as it normally should be. ...
... other. In a normal heart, the 2 great vessels should not appear together in any plane as they cross each other in their proximal course. The aorta here is anterior, not posterior as it normally should be. ...
LAB Heart Dissection
... cut with your fingers & rinse out any dried blood with water. 10. Examine the left atrium. Find the openings of the pulmonary veins from the lungs. Observe the one-way, semi-lunar valves at the entrance to these veins. 11. Inside this chamber, look for the valve that controls blood flow between the ...
... cut with your fingers & rinse out any dried blood with water. 10. Examine the left atrium. Find the openings of the pulmonary veins from the lungs. Observe the one-way, semi-lunar valves at the entrance to these veins. 11. Inside this chamber, look for the valve that controls blood flow between the ...
Right Ventricle PV Loops
... shaped when viewed in cross section (above). The RV shape is also influenced by the position of the inter-ventricular septum. Under normal loading and electrical conditions, the septum is concave toward the LV in both systole and diastole. RV has different genetic composition as compared to the LV, ...
... shaped when viewed in cross section (above). The RV shape is also influenced by the position of the inter-ventricular septum. Under normal loading and electrical conditions, the septum is concave toward the LV in both systole and diastole. RV has different genetic composition as compared to the LV, ...
3 years old
... tricuspid) It corresponds to the beginning of systole. Abnormally wide splitting: right bundle branch block, Ebstein’s anomaly Increased S1: pyrexia, anemia, excitement, thyrotoxicosis, short PR interval, mitral stenosis Decreased S1: long PR interval and mitral regurgitation Second heart sound ...
... tricuspid) It corresponds to the beginning of systole. Abnormally wide splitting: right bundle branch block, Ebstein’s anomaly Increased S1: pyrexia, anemia, excitement, thyrotoxicosis, short PR interval, mitral stenosis Decreased S1: long PR interval and mitral regurgitation Second heart sound ...
Left lung - Fullfrontalanatomy.com
... Systole= heart muscle contraction (atrial systole, ventricular systole) Diastole= heart muscle relaxation (for blood pressure, systolic vs diastolic pressure refers to ventricles.) - Heart beat “lub-dup” sounds are caused when valves close. Heart murmur: ineffective valves that cause blood to pass b ...
... Systole= heart muscle contraction (atrial systole, ventricular systole) Diastole= heart muscle relaxation (for blood pressure, systolic vs diastolic pressure refers to ventricles.) - Heart beat “lub-dup” sounds are caused when valves close. Heart murmur: ineffective valves that cause blood to pass b ...
Congestive Heart Failure
... Right atrium – receives “used” deoxygenated blood from the rest of the body. When it contracts it pushes blood through the tricuspid valve into the right ventricle. Right ventricle –receives blood from the right atrium and when it contracts, it pushes blood out of the heart to the lungs, via the pul ...
... Right atrium – receives “used” deoxygenated blood from the rest of the body. When it contracts it pushes blood through the tricuspid valve into the right ventricle. Right ventricle –receives blood from the right atrium and when it contracts, it pushes blood out of the heart to the lungs, via the pul ...
Lecture 20: Heart
... The diaphragm, a skeletal muscle innervated by the phrenic nerve, separates the thoracic cavity from the abdominal cavity. First examine the contents of the thoracic cavity. The left and right lungs lie in left and right pleural cavities, respectively. These cavities lie on either side of the medias ...
... The diaphragm, a skeletal muscle innervated by the phrenic nerve, separates the thoracic cavity from the abdominal cavity. First examine the contents of the thoracic cavity. The left and right lungs lie in left and right pleural cavities, respectively. These cavities lie on either side of the medias ...
16-Heart
... border, from right to left. 2- Posterior interventricular artery (descending) : Medium sized, passes near its termination into the posterior interventricular groove to end in a poor anastomosis with the termination of the anterior interventricular artery, from the left coronary artery. 3- Small twig ...
... border, from right to left. 2- Posterior interventricular artery (descending) : Medium sized, passes near its termination into the posterior interventricular groove to end in a poor anastomosis with the termination of the anterior interventricular artery, from the left coronary artery. 3- Small twig ...
ATRIAL FIBRILLATION: MULTI-DETECTOR CT EVALUATION OF
... correlation between the atrium and pulmonary venous morphological characteristics has not been investigated. Our objective was to determine if morphological characteristics of the left atrium and pulmonary venous connections are associated with atrial fibrillation. Left atrial and pulmonary venous a ...
... correlation between the atrium and pulmonary venous morphological characteristics has not been investigated. Our objective was to determine if morphological characteristics of the left atrium and pulmonary venous connections are associated with atrial fibrillation. Left atrial and pulmonary venous a ...
Training Handout - Science Olympiad
... left ventricle through the mitral valve. The atrioventricular (AV) valves (Mitral & Tricuspid Valves) prevent flow from the ventricles back into the atria. Right Ventricle: It collects deoxygenated blood from the right atrium and then forces it into the lungs through the pulmonary valve. Left Ventri ...
... left ventricle through the mitral valve. The atrioventricular (AV) valves (Mitral & Tricuspid Valves) prevent flow from the ventricles back into the atria. Right Ventricle: It collects deoxygenated blood from the right atrium and then forces it into the lungs through the pulmonary valve. Left Ventri ...
General Pediatric Board Review Pediatric Cardiology
... Tet spells cyanosis often worsened or caused by crying ...
... Tet spells cyanosis often worsened or caused by crying ...
Pulmonary Hypertension:
... Gross specimen from a patient with severe pulmonary hypertension present since birth. The right side of the heart is severely enlarged. To the right, the lungs are opened, revealing thickened pulmonary arteries. The treatment of pulmonary hypertension involves medical management of any underlying c ...
... Gross specimen from a patient with severe pulmonary hypertension present since birth. The right side of the heart is severely enlarged. To the right, the lungs are opened, revealing thickened pulmonary arteries. The treatment of pulmonary hypertension involves medical management of any underlying c ...
Heart Anatomy - Dr. M`s Class
... CO2-poor blood Oxygen-poor, CO2-rich blood © 2013 Pearson Education, Inc. ...
... CO2-poor blood Oxygen-poor, CO2-rich blood © 2013 Pearson Education, Inc. ...
the slides
... echocardiogram: peak TR velocity 4.2 m/s severely dilated right ventricle moderate pericardial effusion referred urgently to Hammersmith Hospital ...
... echocardiogram: peak TR velocity 4.2 m/s severely dilated right ventricle moderate pericardial effusion referred urgently to Hammersmith Hospital ...
Predictors for Regression of Large Secundum Atrial Septal Defects
... formation of an atrial septal aneurysm (ASA). Brand et al. 13 suggested that an ASA may play a role in spontaneous closure of the associated ASD. Recently, Demir et al.14 examined 9 patients with ASAs and ASDs measuring > 7 mm. All showed decreases in size over time. Defects spontaneously closed in ...
... formation of an atrial septal aneurysm (ASA). Brand et al. 13 suggested that an ASA may play a role in spontaneous closure of the associated ASD. Recently, Demir et al.14 examined 9 patients with ASAs and ASDs measuring > 7 mm. All showed decreases in size over time. Defects spontaneously closed in ...
THORACIC CAVITY - University of Kansas Medical Center
... Left atrium (Fig. 1.46, p 152): Receives blood from four pulmonary veins. Smaller and thicker-walled than right atrium. Posterior smooth portion receives pulmonary veins. Anterior portion = auricle: with pectinate muscles. ...
... Left atrium (Fig. 1.46, p 152): Receives blood from four pulmonary veins. Smaller and thicker-walled than right atrium. Posterior smooth portion receives pulmonary veins. Anterior portion = auricle: with pectinate muscles. ...
what is cor pulmonale - Mother Baby University
... a. Blood tests—This can tell the MD/NNP if the baby’s blood has enough oxygen and if there is an infection. b. Chest X-rays—An x-ray takes pictures of the structures/organs inside the chest such as the heart and lungs. They can help the MD/NNP diagnose BPD, signs of inflammation or infection in the ...
... a. Blood tests—This can tell the MD/NNP if the baby’s blood has enough oxygen and if there is an infection. b. Chest X-rays—An x-ray takes pictures of the structures/organs inside the chest such as the heart and lungs. They can help the MD/NNP diagnose BPD, signs of inflammation or infection in the ...
Isomerism - Evelina London Children`s Hospital
... body via two large veins called the inferior and superior vena cava. The left atrium collects oxygenated blood from the lungs via four pulmonary veins. The lower chambers, known as the ventricles, are the pumping chambers. The right chamber pumps blood to the lungs and the left chamber pumps blood a ...
... body via two large veins called the inferior and superior vena cava. The left atrium collects oxygenated blood from the lungs via four pulmonary veins. The lower chambers, known as the ventricles, are the pumping chambers. The right chamber pumps blood to the lungs and the left chamber pumps blood a ...
Chapter 2 - Report of the Manitoba Pediatric Cardiac Surgery Inquest
... The atria are the collecting chambers of the heart, into which blood flows from the body and the lungs. The atria pump blood into the ventricles, although the force of the atrial pumping action is not as strong as that of the ventricles. These are the stronger pumping chambers, responsible for movin ...
... The atria are the collecting chambers of the heart, into which blood flows from the body and the lungs. The atria pump blood into the ventricles, although the force of the atrial pumping action is not as strong as that of the ventricles. These are the stronger pumping chambers, responsible for movin ...
Some diseases are closely linked to life-style
... back through an imperfectly closed valve. If there is a hole in the septum (the wall which separates the right from left heart) old blood in the right heart can mix with oxygenated blood in the left heart. The most common septal defect is called patent ductus arteriosus. The lungs of the unborn are ...
... back through an imperfectly closed valve. If there is a hole in the septum (the wall which separates the right from left heart) old blood in the right heart can mix with oxygenated blood in the left heart. The most common septal defect is called patent ductus arteriosus. The lungs of the unborn are ...
Atrial septal defect
Atrial septal defect (ASD) is a congenital heart defect in which blood flows between the atria (upper chambers) of the heart. Normally, the atria are separated by a dividing wall, the interatrial septum. If this septum is defective or absent, then oxygen-rich blood can flow directly from the left side of the heart to mix with the oxygen-poor blood in the right side of the heart, or vice versa. This can lead to lower-than-normal oxygen levels in the arterial blood that supplies the brain, organs, and tissues. However, an ASD may not produce noticeable signs or symptoms, especially if the defect is small.A ""shunt"" is the presence of a net flow of blood through the defect, either from left to right or right to left. The amount of shunting present, if any, determines the hemodynamic significance of the ASD. A ""right-to-left-shunt"" typically poses the more dangerous scenario.During development of the fetus, the interatrial septum develops to separate the left and right atria. However, a hole in the septum called the foramen ovale, allows blood from the right atrium to enter the left atrium during fetal development. This opening allows blood to bypass the nonfunctional fetal lungs while the fetus obtains its oxygen from the placenta. A layer of tissue called the septum primum acts as a valve over the foramen ovale during fetal development. After birth, the pressure in the right side of the heart drops as the lungs open and begin working, causing the foramen ovale to close entirely. In approximately 25% of adults, the foramen ovale does not entirely seal. In these cases, any elevation of the pressure in the pulmonary circulatory system (due to pulmonary hypertension, temporarily while coughing, etc.) can cause the foramen ovale to remain open. This is known as a patent foramen ovale (PFO), which is a type of atrial septal defect.