The cardiovascular system
... oxygen in the blood. Color this artery red. 6. Blood flows through two large veins from the body into the right atrium. Color the right atrium and the two large veins blue. ***Remember that blood is never blue. We are using blue color to represent blood with little oxygen in it. ...
... oxygen in the blood. Color this artery red. 6. Blood flows through two large veins from the body into the right atrium. Color the right atrium and the two large veins blue. ***Remember that blood is never blue. We are using blue color to represent blood with little oxygen in it. ...
File
... • Only path for impulses to reach ventricles is through path of conducting fibers in septum called ATRIOVENTRICULAR NODE (AVN) • AVN receive excitation from atria, delays it 0.1s and then passes it to another bunch of conducting fibers called the PURKINJE FIBERS or PURKYNE TISSUE • Wave of excitatio ...
... • Only path for impulses to reach ventricles is through path of conducting fibers in septum called ATRIOVENTRICULAR NODE (AVN) • AVN receive excitation from atria, delays it 0.1s and then passes it to another bunch of conducting fibers called the PURKINJE FIBERS or PURKYNE TISSUE • Wave of excitatio ...
Circulatory System
... • Secondary response, controls contraction • Delays signal, prevents simultaneous contraction • Artificial Pacemakers • Atrial Fibrillation • Electrical signals and impulses occurring in places other than the nodes • Prevents the right atrium from filling up with blood, body is deprived of blood. ...
... • Secondary response, controls contraction • Delays signal, prevents simultaneous contraction • Artificial Pacemakers • Atrial Fibrillation • Electrical signals and impulses occurring in places other than the nodes • Prevents the right atrium from filling up with blood, body is deprived of blood. ...
Circulation - Heart 13 slides
... L. Ventricle through the AORTA to the rest of the body. • After oxygen is removed by body tissue, the DEOXYGENATED blood re-enters the R. atria through the S. & I. Vena Cava. ...
... L. Ventricle through the AORTA to the rest of the body. • After oxygen is removed by body tissue, the DEOXYGENATED blood re-enters the R. atria through the S. & I. Vena Cava. ...
Heartnotes2017 - Lindbergh School District
... causing a “swishing” sound prior to closure of the stenosed valve. ...
... causing a “swishing” sound prior to closure of the stenosed valve. ...
The Heart
... *Both Atria fill with blood. Atrioventricular(AV) valves (bicuspid and tricuspid) are closed. *Atrial blood pressure rises above ventricular pressure. *Rising blood pressure forces the AV valves to open and blood passively passes into both ventricles. * Back-flow of blood into the ventricles from ma ...
... *Both Atria fill with blood. Atrioventricular(AV) valves (bicuspid and tricuspid) are closed. *Atrial blood pressure rises above ventricular pressure. *Rising blood pressure forces the AV valves to open and blood passively passes into both ventricles. * Back-flow of blood into the ventricles from ma ...
Module 5 – Pediatric Cardiac Disorders
... Aorta arises from the right ventricle, and the pulmonary artery arises from the left ventricle – not compatible with survival unless there is a large defect present in ventricular or atrial septum. ...
... Aorta arises from the right ventricle, and the pulmonary artery arises from the left ventricle – not compatible with survival unless there is a large defect present in ventricular or atrial septum. ...
File
... • Right atrium tricuspid valve right ventricle • Right ventricle pulmonary semilunar valve pulmonary trunk pulmonary arteries lungs Pathway of Blood Through the Heart • Lungs pulmonary veins left atrium • Left atrium bicuspid valve left ventricle • Left ventricle aortic semilun ...
... • Right atrium tricuspid valve right ventricle • Right ventricle pulmonary semilunar valve pulmonary trunk pulmonary arteries lungs Pathway of Blood Through the Heart • Lungs pulmonary veins left atrium • Left atrium bicuspid valve left ventricle • Left ventricle aortic semilun ...
Anatomy Review: The Heart
... the pulmonary arteries to the lungs. • The left atrium receives oxygenated blood from the pulmonary veins; blood moves to the left ventricle and is pumped out the systemic arteries to the body tissues. Study Questions on Anatomy Review: The Heart: 1. (Page 4.) What's the difference between the blood ...
... the pulmonary arteries to the lungs. • The left atrium receives oxygenated blood from the pulmonary veins; blood moves to the left ventricle and is pumped out the systemic arteries to the body tissues. Study Questions on Anatomy Review: The Heart: 1. (Page 4.) What's the difference between the blood ...
Notes
... (a) integral part of the heart wall b) pericardial cavity i) separates parietal and visceral layers ii) filled with pericardial fluid; creates friction-free work area 3. layers of the heart wall A) epicardium 1) composed of a thin layer of CT B) myocardium 1) composed of cardiac muscle tissue C) end ...
... (a) integral part of the heart wall b) pericardial cavity i) separates parietal and visceral layers ii) filled with pericardial fluid; creates friction-free work area 3. layers of the heart wall A) epicardium 1) composed of a thin layer of CT B) myocardium 1) composed of cardiac muscle tissue C) end ...
ASD Case for Reno Mrs. Young
... Mrs. Young is a 35 year old woman admitted to the hospital to determine the cause of her complaint of vague chest pains in stressful situations. Studies carried out at another hospital two years ago had included a chest x-ray which revealed right ventricular enlargement. A moderate systolic murmur ...
... Mrs. Young is a 35 year old woman admitted to the hospital to determine the cause of her complaint of vague chest pains in stressful situations. Studies carried out at another hospital two years ago had included a chest x-ray which revealed right ventricular enlargement. A moderate systolic murmur ...
Cardiovascular System
... from cells ▫ Distributes hormones and antibodies throughout the body ▫ Helps control body temperature and electrolyte balance ...
... from cells ▫ Distributes hormones and antibodies throughout the body ▫ Helps control body temperature and electrolyte balance ...
Extraembryonic blood vessels form during the early
... Prior to birth the pathway/opening between them is the foramen ovale. It allows blood flow between the atria before birth (mostly right-to-left) After birth, higher left side pressure closes the foramen by pushing the septum primum against the septum secundum. ...
... Prior to birth the pathway/opening between them is the foramen ovale. It allows blood flow between the atria before birth (mostly right-to-left) After birth, higher left side pressure closes the foramen by pushing the septum primum against the septum secundum. ...
PowerPoint
... from cells ▫ Distributes hormones and antibodies throughout the body ▫ Helps control body temperature and electrolyte balance ...
... from cells ▫ Distributes hormones and antibodies throughout the body ▫ Helps control body temperature and electrolyte balance ...
The Circulatory System
... - passes the nerve impulses to the ventricles allowing them to contract • Purkinje fibers – nerve fibers in the septum that branch carrying nerve impulses ...
... - passes the nerve impulses to the ventricles allowing them to contract • Purkinje fibers – nerve fibers in the septum that branch carrying nerve impulses ...
right → left shunt
... Ventricular Septal Defect occurs in the interventricular septum, and is more frequent in males that females. ...
... Ventricular Septal Defect occurs in the interventricular septum, and is more frequent in males that females. ...
Cardiac Conducting System AND Cardiac cycle
... Start of cycle: atrial systole – atria contract forcing a small amount of blood into ventricles to fill to capacity(already 70% full due to passive flow during diastole of both atria and ventricles following ventricular systole) Atrial diastole ventricular systole Ventricular pressure exceeds arte ...
... Start of cycle: atrial systole – atria contract forcing a small amount of blood into ventricles to fill to capacity(already 70% full due to passive flow during diastole of both atria and ventricles following ventricular systole) Atrial diastole ventricular systole Ventricular pressure exceeds arte ...
Cardiovascular System: The Heart
... • Receives blood from inferior & superior vena cava, coronary sinus • Receives blood from Right Atrium • Pumps blood to the lungs • Carry deoxygenated blood from the heart to the lungs ...
... • Receives blood from inferior & superior vena cava, coronary sinus • Receives blood from Right Atrium • Pumps blood to the lungs • Carry deoxygenated blood from the heart to the lungs ...
ECOLOGY SPRING 2009
... Pseudocoelomates use body cavity to circulate. Nematodes are thin enough that the digestive tract can also be used as a circulatory system ...
... Pseudocoelomates use body cavity to circulate. Nematodes are thin enough that the digestive tract can also be used as a circulatory system ...
Checklist for Examination of the Cardiovascular System
... Fixed splitting of the second heart sound Soft ejection systolic murmur loudest at the second left intercostal space Associations • Noonan syndrome • Holt-Oram syndrome Key points • Accounts for about 8% of congenital defects • With a large shunt there may also be a diastolic murmur in the tricuspid ...
... Fixed splitting of the second heart sound Soft ejection systolic murmur loudest at the second left intercostal space Associations • Noonan syndrome • Holt-Oram syndrome Key points • Accounts for about 8% of congenital defects • With a large shunt there may also be a diastolic murmur in the tricuspid ...
The Heart
... right atrium ■ pulmonary S-L (right) ■ aortic S-L (left) A-V function: (tricuspid) ■ prevent backflow right ventricle into ventricles as the arteries snap back septum May 4, 2017 ...
... right atrium ■ pulmonary S-L (right) ■ aortic S-L (left) A-V function: (tricuspid) ■ prevent backflow right ventricle into ventricles as the arteries snap back septum May 4, 2017 ...
Slide () - AccessAnesthesiology
... Acute right ventricular failure. A: In the long-axis view, the right ventricle is dilated and appears to be greater than two-thirds the size of the left ventricle, and the apex of the heart includes the right ventricle (arrow). B: In the short-axis view, a small, hyperdynamic left ventricle is seen ...
... Acute right ventricular failure. A: In the long-axis view, the right ventricle is dilated and appears to be greater than two-thirds the size of the left ventricle, and the apex of the heart includes the right ventricle (arrow). B: In the short-axis view, a small, hyperdynamic left ventricle is seen ...
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.