6.2 – The Blood System
... B. Sinoatrial node (SA node) – mass of tissue located in the right atrium 1. acts as a natural pacemaker 2. initiates contraction of both atria and sends out signals to AV node after .8 seconds ...
... B. Sinoatrial node (SA node) – mass of tissue located in the right atrium 1. acts as a natural pacemaker 2. initiates contraction of both atria and sends out signals to AV node after .8 seconds ...
Heart Structure and function
... Why is a mammalian heart is divided into a right and left side? • Keeps oxygenated and deoxygenated blood separate • Allows as much oxygen as possible to be carried to the tissues • Allows different pressures to exist – left more pressure required to force blood to body whereas right side requires ...
... Why is a mammalian heart is divided into a right and left side? • Keeps oxygenated and deoxygenated blood separate • Allows as much oxygen as possible to be carried to the tissues • Allows different pressures to exist – left more pressure required to force blood to body whereas right side requires ...
Young Scientist Program Anatomy Teaching Team
... During early development, the fetus does not use the lungs to exchange O2 and CO2. Instead, gas exchange is carried out from mother to baby at the placenta. As a result of this, there are differences in the circulation during in utero development. Because oxygenated b ...
... During early development, the fetus does not use the lungs to exchange O2 and CO2. Instead, gas exchange is carried out from mother to baby at the placenta. As a result of this, there are differences in the circulation during in utero development. Because oxygenated b ...
Transposition of the Great Arteries
... to the newly positioned aorta as well, or "blue" blood will supply the muscle of the heart. Associated holes between the chambers of the heart are closed. The heart is then restarted as the heart-lung machine is withdrawn. What is the long-term outlook after TGA surgical repair? Many infants who und ...
... to the newly positioned aorta as well, or "blue" blood will supply the muscle of the heart. Associated holes between the chambers of the heart are closed. The heart is then restarted as the heart-lung machine is withdrawn. What is the long-term outlook after TGA surgical repair? Many infants who und ...
Pediatric Echocardiography The Segmental Approach
... Window mid to upper right sternal border Atrial septum – looking for sinus venosus defect Caval-caval view – SVC thrombus Ascending aorta – best view for aortic doppler Right upper pulmonary vein Rotate to short axis – notch at 3 o’clock ...
... Window mid to upper right sternal border Atrial septum – looking for sinus venosus defect Caval-caval view – SVC thrombus Ascending aorta – best view for aortic doppler Right upper pulmonary vein Rotate to short axis – notch at 3 o’clock ...
CARDIOVASCULAR CONFERENCE: Approach to a patient with
... Hyperoxia test is considered positive for ...
... Hyperoxia test is considered positive for ...
PDF - Circulation: Cardiovascular Imaging
... right ventricle (left-sided), and the left ventricle (right-sided) was baffled, via the ventricular septal defect, to the pulmonary artery. An arterial switch was then performed to direct the deoxygenated blood to the pulmonary artery and the oxygenated blood to the aorta. There was an excellent cor ...
... right ventricle (left-sided), and the left ventricle (right-sided) was baffled, via the ventricular septal defect, to the pulmonary artery. An arterial switch was then performed to direct the deoxygenated blood to the pulmonary artery and the oxygenated blood to the aorta. There was an excellent cor ...
A Patient`s Guide to the Non-surgical Closure of an Atrial Septal Defect
... The heart is a pump with four chambers: two small upper chambers called the atria (you have a right and a left atrium) and two larger, more powerful pumping chambers called ventricles (again you have a right and a left ventricle). A healthy heart pumps blood through the body and is controlled by a u ...
... The heart is a pump with four chambers: two small upper chambers called the atria (you have a right and a left atrium) and two larger, more powerful pumping chambers called ventricles (again you have a right and a left ventricle). A healthy heart pumps blood through the body and is controlled by a u ...
Nikaidoh Procedure NOTES - Children`s Heart Clinic
... pulmonary valve (stenosis). This surgery involves “translocation” of the transposed aorta over the correct, left, ventricle. The outflow of the right ventricle is then reconstructed with either a right ventricle to pulmonary artery (RV-PA) conduit or patch made of bovine (cow) pericardium (sac surro ...
... pulmonary valve (stenosis). This surgery involves “translocation” of the transposed aorta over the correct, left, ventricle. The outflow of the right ventricle is then reconstructed with either a right ventricle to pulmonary artery (RV-PA) conduit or patch made of bovine (cow) pericardium (sac surro ...
B2B pediatric cardiology dr suzie lee 2010
... compliance of right ventricle Loads right ventricle and right atrium Increased pulmonary blood flow at normal pressure ...
... compliance of right ventricle Loads right ventricle and right atrium Increased pulmonary blood flow at normal pressure ...
Circulatory System 3
... There’s the cardiac muscle, which is very special. Other muscles have cramps when it’s worn out or have anaerobic respiration (doesn't have enough oxygen). ...
... There’s the cardiac muscle, which is very special. Other muscles have cramps when it’s worn out or have anaerobic respiration (doesn't have enough oxygen). ...
Name: Class: Date: The Heart and Circulation Reinforcement
... which carries it to the lungs, where gas exchange takes place. • Oxygen-rich blood returns through the pulmonary vein to the left atrium of the heart. The atrium contracts and sends the blood into the left ventricle. • The left ventricle contracts and sends the blood out of the heart to the rest of ...
... which carries it to the lungs, where gas exchange takes place. • Oxygen-rich blood returns through the pulmonary vein to the left atrium of the heart. The atrium contracts and sends the blood into the left ventricle. • The left ventricle contracts and sends the blood out of the heart to the rest of ...
Your Heart and How it works
... In order to understand heart surgery you must learn normal heart anatomy and how it works. While reading this guide please refer back to this section to help you understand you child's heart problem. The heart has four chambers-two atria and two ventricles, and it has four valves-the tricuspid and p ...
... In order to understand heart surgery you must learn normal heart anatomy and how it works. While reading this guide please refer back to this section to help you understand you child's heart problem. The heart has four chambers-two atria and two ventricles, and it has four valves-the tricuspid and p ...
The BROKEN HEART
... can now go through the pulmonary artery to the lungs. If the ductus arteriosus, connecting the pulmonary artery and the aorta, does not close after birth, then the blood will not get oxygenated efficiently. PDA is detected when there are abnormal heart sounds (murmurs) and cyanosis (bluish color). C ...
... can now go through the pulmonary artery to the lungs. If the ductus arteriosus, connecting the pulmonary artery and the aorta, does not close after birth, then the blood will not get oxygenated efficiently. PDA is detected when there are abnormal heart sounds (murmurs) and cyanosis (bluish color). C ...
Congenital Heart Disease (CHD)
... 2. Cyanotic CHD With increased pulmonary blood flow 2.1 Transposition of the Great Arteries the aorta is connected to the right ventricle, and the pulmonary artery is connected to the left ventricle Oxygen-poor (blue) blood returns to the right atrium from the body passes through the right atriu ...
... 2. Cyanotic CHD With increased pulmonary blood flow 2.1 Transposition of the Great Arteries the aorta is connected to the right ventricle, and the pulmonary artery is connected to the left ventricle Oxygen-poor (blue) blood returns to the right atrium from the body passes through the right atriu ...
Principles of Health Science – Cardiovascular System Notes Station
... 3. Three layers of tissue form the heart. The __________________________ lines the inside of the heart. The thickest layer is the myocardium, the muscular _________________________layer. The _________________________ covers the outside of the heart. 4. The septum is a muscular wall that ____________ ...
... 3. Three layers of tissue form the heart. The __________________________ lines the inside of the heart. The thickest layer is the myocardium, the muscular _________________________layer. The _________________________ covers the outside of the heart. 4. The septum is a muscular wall that ____________ ...
Review - LWW.com
... 35. At its termination in the abdomen, the aorta divides into the right and left (see Fig. 9-5) ...
... 35. At its termination in the abdomen, the aorta divides into the right and left (see Fig. 9-5) ...
Atrioventricular Septal Defect
... ventricles to severely unbalanced with a single dominant ventricle and a second hypoplastic ventricle • Single-ventricle physiology and surgical management ...
... ventricles to severely unbalanced with a single dominant ventricle and a second hypoplastic ventricle • Single-ventricle physiology and surgical management ...
File - Coach Frei Science
... OPEN during heart relaxation and ________________ when ventricles contracting ...
... OPEN during heart relaxation and ________________ when ventricles contracting ...
Ventricular Septal Defect
... It is important to check the baby for other abnormalities. Further tests include a detailed ultrasound that is used to assess the baby’s other organs. A fetal echocardiogram, which is a detailed ultrasound of your baby’s heart, will also be done. An amniocentesis to look for chromosome problems will ...
... It is important to check the baby for other abnormalities. Further tests include a detailed ultrasound that is used to assess the baby’s other organs. A fetal echocardiogram, which is a detailed ultrasound of your baby’s heart, will also be done. An amniocentesis to look for chromosome problems will ...
The structure and function of the mammalian heart
... particular importance to the wellbeing of both the heart and mammal as a whole. If blood flow to the heart is restricted it may cause angina or a heart attack (myocardial infarction). There are a number of larger veins and arteries at the very top of the heart which carry the blood into and out of t ...
... particular importance to the wellbeing of both the heart and mammal as a whole. If blood flow to the heart is restricted it may cause angina or a heart attack (myocardial infarction). There are a number of larger veins and arteries at the very top of the heart which carry the blood into and out of t ...
Acc_Bio_Circulation_Notes_wiki
... acts as the pacemaker for the heart cluster of cells located in the upper wall of the right atrium sends a rhythmic electrical stimulus causing both atria to contract pushing blood into the ventricles Atrioventricular (AV) node in between the atria causes contraction of the ventricles just ...
... acts as the pacemaker for the heart cluster of cells located in the upper wall of the right atrium sends a rhythmic electrical stimulus causing both atria to contract pushing blood into the ventricles Atrioventricular (AV) node in between the atria causes contraction of the ventricles just ...
Pulmonary Embolism - doc meg's hideout
... • Venous thrombi dislodge • Enters the pulmonary circulation • Or paradoxically, to arterial circulation ...
... • Venous thrombi dislodge • Enters the pulmonary circulation • Or paradoxically, to arterial circulation ...
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.