Heart
... 2. Identify the upper chambers. Right and left atria 3. Identify the lower chambers.Right and left ventricles 3. Explain the importance of heart valves. They prevent the backflow of blood. 4. Why is the septum so important? To prevent the mixing of oxy and deoxy blood.. 5. Where is deoxygenated bloo ...
... 2. Identify the upper chambers. Right and left atria 3. Identify the lower chambers.Right and left ventricles 3. Explain the importance of heart valves. They prevent the backflow of blood. 4. Why is the septum so important? To prevent the mixing of oxy and deoxy blood.. 5. Where is deoxygenated bloo ...
File
... o Atria fill with blood returning from the body and lungs • Two lower, thick-walled ventricles o Ventricles receive blood from atria and pump it out to body and lungs The heart has four valves that direct the flow of blood and prevent its backward movement. • Two atrioventricular valves that are sup ...
... o Atria fill with blood returning from the body and lungs • Two lower, thick-walled ventricles o Ventricles receive blood from atria and pump it out to body and lungs The heart has four valves that direct the flow of blood and prevent its backward movement. • Two atrioventricular valves that are sup ...
ASD Patient Brochure
... How do the catheter-based procedures for ASD closure work? Physicians have been performing catheter-based procedures in the heart to make diagnoses and treat heart conditions for many years. Catheter-based closure of an ASD involves the placement of a permanent implant, such as the GORE® Septal Occl ...
... How do the catheter-based procedures for ASD closure work? Physicians have been performing catheter-based procedures in the heart to make diagnoses and treat heart conditions for many years. Catheter-based closure of an ASD involves the placement of a permanent implant, such as the GORE® Septal Occl ...
Heart Dissection. (taken from Johnson, Weipz and Savage Lab Book
... of this vessel and cut through it. Continue cutting down and into the right atrium, stopping short of the ventricle. This cut should have exposed the cusps of the tricuspid valve, between the right atrium and right ventricle. Continue your previous cut with the scissors from the right atrium through ...
... of this vessel and cut through it. Continue cutting down and into the right atrium, stopping short of the ventricle. This cut should have exposed the cusps of the tricuspid valve, between the right atrium and right ventricle. Continue your previous cut with the scissors from the right atrium through ...
Q1-3 Circulatory System
... c. Atrioventricular node (AV node) Located septrum B/T atria Relay impulse to ventricles d. Ventricles beat fraction of a second after atria e. 2 phases of heart beat Systole – Ventricles contract/ close AV valves and open SL valves Diastole – ventricles relax/ back press. Blood closes SL valves/ Op ...
... c. Atrioventricular node (AV node) Located septrum B/T atria Relay impulse to ventricles d. Ventricles beat fraction of a second after atria e. 2 phases of heart beat Systole – Ventricles contract/ close AV valves and open SL valves Diastole – ventricles relax/ back press. Blood closes SL valves/ Op ...
Imaging of Adult Atrial Septal Defects With CT Angiography
... A patent foramen ovale (PFO) differs anatomically from an ASD in that it consists of a persistent tunneled fetal-type communication between the atria due to failure of fusion of the septum primum (blue arrows) with the septum secundum (red arrows) rather than a simple defect in the septum. Up to 25% ...
... A patent foramen ovale (PFO) differs anatomically from an ASD in that it consists of a persistent tunneled fetal-type communication between the atria due to failure of fusion of the septum primum (blue arrows) with the septum secundum (red arrows) rather than a simple defect in the septum. Up to 25% ...
o Pulmonary Atresia and Intact Ventricular Septum
... Right ventricular size may vary from severe hypoplasia to a near normal size, depending on when in fetal development the pulmonary valve became atretic. If it was late in cardiac development, the chance is greater that the right ventricle will be larger at birth. Generally, hypoplasia of the tricusp ...
... Right ventricular size may vary from severe hypoplasia to a near normal size, depending on when in fetal development the pulmonary valve became atretic. If it was late in cardiac development, the chance is greater that the right ventricle will be larger at birth. Generally, hypoplasia of the tricusp ...
mammalian heart dissection - Tamalpais Union High School District
... tissues. The pump is composed of four (4) hollow chambers. The two right-side chambers relate to the lungs and are responsible for the pulmonary circulation. Deoxygenated blood from the body enters the right atrium and is pumped to the lungs, under relatively low pressure, by the right ventricle. Th ...
... tissues. The pump is composed of four (4) hollow chambers. The two right-side chambers relate to the lungs and are responsible for the pulmonary circulation. Deoxygenated blood from the body enters the right atrium and is pumped to the lungs, under relatively low pressure, by the right ventricle. Th ...
Test 1 - spring 2005
... a. electrical activity in the heart b. blood pressure c. amount of blood pumped out of each ventricle per beat d. average pressure per heart beat 36. The two distinct heart sounds, described as lub and dub, represent a. contraction of the ventricles and relaxation of the atria b. contraction of the ...
... a. electrical activity in the heart b. blood pressure c. amount of blood pumped out of each ventricle per beat d. average pressure per heart beat 36. The two distinct heart sounds, described as lub and dub, represent a. contraction of the ventricles and relaxation of the atria b. contraction of the ...
Guided notes circulatory system
... Problems of the Circulatory System High blood pressure is also known as _______________. • Arteriosclerosis is ______________________________ _____________________________________________ _____________________________________________. • Heart Attacks occur because of ___________________ ___________ ...
... Problems of the Circulatory System High blood pressure is also known as _______________. • Arteriosclerosis is ______________________________ _____________________________________________ _____________________________________________. • Heart Attacks occur because of ___________________ ___________ ...
Circulatory System - Multiple Choice Test 6 7 8 9
... The blood is pumped to the lungs from the heart through the: A aorta B pulmonary veins C pulmonary arteries D vena cavas ...
... The blood is pumped to the lungs from the heart through the: A aorta B pulmonary veins C pulmonary arteries D vena cavas ...
lab: heart dissection
... 2. Insert a glass rod into the pulmonary artery and see it come through to the right ventricle. Make an incision down through this artery and look inside it for three small membranous pockets. These form the pulmonary semilunar valve which prevents blood from flowing back into the right ventricle. 3 ...
... 2. Insert a glass rod into the pulmonary artery and see it come through to the right ventricle. Make an incision down through this artery and look inside it for three small membranous pockets. These form the pulmonary semilunar valve which prevents blood from flowing back into the right ventricle. 3 ...
Sheep Heart Dissection Lab
... Which chambers are the pumping chambers of the heart? ________________________________ Which chambers are the receiving chambers of the heart? ________________________________ 5. On the dorsal surface of the heart are the stumps of two relatively large but thin-walled blood vessels that enter the ri ...
... Which chambers are the pumping chambers of the heart? ________________________________ Which chambers are the receiving chambers of the heart? ________________________________ 5. On the dorsal surface of the heart are the stumps of two relatively large but thin-walled blood vessels that enter the ri ...
Cyanotic Heart Lesions
... • PGE1 administration does not improve oxygenation because elevated pulmonary pressures in the right side of the heart (due to obstructed pulmonary outflow) will result in right to left shunting across an open ductus further decreasing arterial saturation. ...
... • PGE1 administration does not improve oxygenation because elevated pulmonary pressures in the right side of the heart (due to obstructed pulmonary outflow) will result in right to left shunting across an open ductus further decreasing arterial saturation. ...
Outline 4
... 4. Anterior Cardiac Veins a. Empty into Right Atrium Directly 5. Anastomoses a. Arterial Anastomosis 6. Clinical Application: Myocardial Infarction (MI) ...
... 4. Anterior Cardiac Veins a. Empty into Right Atrium Directly 5. Anastomoses a. Arterial Anastomosis 6. Clinical Application: Myocardial Infarction (MI) ...
Cardiac - Society for Pediatric Radiology
... Some centers perform Fontans at an earlier age, with the belief that younger children do better. In most places, the extra‐cardiac conduit Fontans are done at 3‐4 yrs of age, or when they are at least 15 kg. They may be done earlier if they have complicating factors (significant AV valve regurgi ...
... Some centers perform Fontans at an earlier age, with the belief that younger children do better. In most places, the extra‐cardiac conduit Fontans are done at 3‐4 yrs of age, or when they are at least 15 kg. They may be done earlier if they have complicating factors (significant AV valve regurgi ...
Congenital Heart Disease
... RA enlargement due to overload results in hypertrophy, CYANOSIS results loss of compliance and subsequently increased pressure, plus =”boot-shaped” heart on Chest Xray pulmonary congestion possibly as part of the Eisenmenger whenever you get systemic vasodilation, an increased RtLt syndrome th ...
... RA enlargement due to overload results in hypertrophy, CYANOSIS results loss of compliance and subsequently increased pressure, plus =”boot-shaped” heart on Chest Xray pulmonary congestion possibly as part of the Eisenmenger whenever you get systemic vasodilation, an increased RtLt syndrome th ...
Patho Ch12
... Ostium secundum develops before ostium primum is completely grown over Septum secundum grows to the R of septum primum (opening "foramen ovale" - continuous with ostium secundum, permit intrauterine shunting of blood) Septum secundum grows to form a flap of tissue over foramen ovale Flap of tiss ...
... Ostium secundum develops before ostium primum is completely grown over Septum secundum grows to the R of septum primum (opening "foramen ovale" - continuous with ostium secundum, permit intrauterine shunting of blood) Septum secundum grows to form a flap of tissue over foramen ovale Flap of tiss ...
Double Outlet Right Ventricle with Long Survival - Heart
... A woman of 27 years was admitted in December 1966, and died 6 days later. She had cyanosis from the age of 6 months and had repeated syncopal attacks up to the age of 6 years. She had a history of squatting, progressively increasing effort intolerance, and recurrent bouts of haemoptysis during the l ...
... A woman of 27 years was admitted in December 1966, and died 6 days later. She had cyanosis from the age of 6 months and had repeated syncopal attacks up to the age of 6 years. She had a history of squatting, progressively increasing effort intolerance, and recurrent bouts of haemoptysis during the l ...
3.-the-heart-circulatory-system
... through the heart, lungs and body. • Describe the pathway of deoxygenated blood through the heart, lungs and body. ...
... through the heart, lungs and body. • Describe the pathway of deoxygenated blood through the heart, lungs and body. ...
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.