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Profile Documents Logout
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Document
Document

... • Valves in each chamber prevent backflow of blood. • Muscles squeeze the chambers in a powerful pumping action. ...
Soft Foam Cross-section Human Heart Model
Soft Foam Cross-section Human Heart Model

... place two fingers to their neck under their jaw and count how many times they feel their heart beat in 15 seconds and then multiply by 4. (Tell them when to start and when to stop so they only have to focus on counting.) Have them record their answer in a notebook. Then, instruct the students to do ...
Hypoplastic Left Heart Syndrome
Hypoplastic Left Heart Syndrome

... Treatment consists of three stages ending with the Fontan procedure. The Fontan procedure takes advantage of the fact that blood flows so easily through the mature lung that it does not need the force of the right ventricle to push it through. In fact, the great veins bringing "blue" blood back to t ...
Cardiovascular System
Cardiovascular System

... • The contraction of the left ventricle sends blood rich in oxygen all over the body. There are three arteries that bring blood to the head, neck, and upper extremities. There is one major vessel that brings blood to the abdomen and lower extremities. • Arteries are the large vessels that bring blo ...
Hemodynamic Monitoring INTRODUCTION
Hemodynamic Monitoring INTRODUCTION

... assessment of their cardiovascular system to diagnose and manage their complex medical conditions. This is most commonly achieved by using direct pressure monitoring systems, often referred to as ...
ECG
ECG

... -complet block - QRS > 0,12s -incomplet - QRS < 0,11s Incidence: heart attack (congenital LBBB extremely rare. aortal stenosis or diphteria) ...
ventricular septal defect (VSD)
ventricular septal defect (VSD)

... in different areas of the left ventricle. Do the following: 1. Identify and describe the lesions 2. Discuss the pathogenesis of the lesions using basic principles of pathology 3. Again, using basic principles of pathology, explain how each of these lesions could have contributed to the sudden cardia ...
Answers to WHAT DID YOU LEARN QUESTIONS
Answers to WHAT DID YOU LEARN QUESTIONS

... (right atrium and ventricle) as well as the pulmonary arteries and veins. It conveys blood to the lungs via pulmonary arteries to exchange respiratory gases in the blood before returning to the heart in pulmonary veins. The systemic circulation consists of the chambers on the left side of the heart ...
Cryptogenic Stroke
Cryptogenic Stroke

... the United States and a major contributor to long-term functional impairment and disability. ...
Atrial_Flutter
Atrial_Flutter

... The atrial flutter waves, known as F waves, are observed. F waves are larger than normal P waves and they have a saw-toothed waveform. Not every atrial flutter wave results in a QRS complex (ventricular depolarization) because the AV node acts as a filter. Some flutter waves reach the AV node when i ...
Heart
Heart

... Systole is another term for contraction.  Diastole is another term for relaxation. ...
Atrial septal defect - British Heart Foundation
Atrial septal defect - British Heart Foundation

... the left atrium to pass to the right atrium. Some ASDs are very small and may never cause any problems or require treatment. However, a large ASD can result in the right side of your child’s heart being overloaded with blood. ASD may only cause mild symptoms, such as breathlessness when being active ...
pulmonary hypertension
pulmonary hypertension

... Medications presented in this section are intended to provide general information about possible treatment. The treatment for a particular condition may evolve as medical advances are made; therefore, the medications should not be considered as all inclusive. ...
Angina - Philadelphia College of Osteopathic Medicine
Angina - Philadelphia College of Osteopathic Medicine

... Ventricular chambers are more muscular and larger in size because they must pump blood away from the heart into a system under higher pressure, the pulmonary arteries or Trabeculae aorta. The left ventricle is the most muscular since it functions to pump Carneae blood to the entire body via the aort ...
Student Directions 2B
Student Directions 2B

... the heart contains valves. The tricuspid valve separates the right atrium and the right ventricle. The bicuspid valve separates the left atrium and the left ventricle. The pulmonary valve separates the right ventricle from the pulmonary artery going to the lungs. The aortic valve separates the left ...
Principles of anatomy and physiology in sport
Principles of anatomy and physiology in sport

... 9 The VOLUME of air breathed in and out in one breathing cycle ...
Document
Document

... closed AV valves ...
Heart Dissection
Heart Dissection

... leaflets and is therefore often referred to as the tricuspid valve. Unoxygenated blood flows into the right atrium and then moves into the right ventricle through the AV valve. When the right ventricle contracts, the AV valve is closed such that blood cannot backflow into the atrium and the blood ca ...
to this factsheet in PDF form
to this factsheet in PDF form

... help the kidneys pass more water, so reducing excess fluid in the organs, especially the lungs. ...
Heart Dissection practical
Heart Dissection practical

... leaflets and is therefore often referred to as the tricuspid valve. Unoxygenated blood flows into the right atrium and then moves into the right ventricle through the AV valve. When the right ventricle contracts, the AV valve is closed such that blood cannot backflow into the atrium and the blood ca ...
L06 - Fetal Circulation
L06 - Fetal Circulation

... ○ Due to temperature change, Wharton's Jelly contracts and "clamps" umbilical structures ~5 minutes after birth Umbilical Cord Pathologies - Nuchal Cord = 1+ loops of umbilical cord are wrapped around fetal neck - True Umbilical Cord Knot - Umbilical cord pseudoknot = not true knot, just exaggerated ...
LECTURE EXAM 2 -
LECTURE EXAM 2 -

... a. is the primary source of oxygenated blood to the thoracic wall b. serves primarily to return thoracic blood to the inferior vena cava c. receives three lymph ducts from the upper right side of the body d. drains into the cisterna chyli e. receives blood from intercostal veins 23. The fibrous skel ...
By the end of this session, the student should be able to
By the end of this session, the student should be able to

... obliterates. LCCV obliterates at 10th wks Oblique vein of left atrium and coronary sinus is left on left sinus horn Development of sinus venosus Right horn get incorporated in right atrium Its entrance sinuatrial orifice is bounded by right and left venous valves Septum spurium Inf. Part of right ve ...
anesthesia for a patient of mitral stenosis
anesthesia for a patient of mitral stenosis

... Diagnosis of Mitral Stenosis Assessment of hemodynamic severity ◦ mean gradient, mitral valve area, pulmonary artery pressure Assessment of right ventricular size and function. Diagnosis and assessment of concomitant valvular lesions Reevaluation of patients with known MS with changing symptoms or s ...
The Heart and Lungs at Work
The Heart and Lungs at Work

... The sinus node generates an electrical charge called an action potential. The action potential causes the muscle walls of the heart to contract. This action potential travels through the two atria and the two ventricles via the a-v node and the Purkinje fibers. ...
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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.
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