• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Cardio6Activity4A.pdf
Cardio6Activity4A.pdf

... 1.) Orient heart so the apex (bottom of “V”) of the heart points down and to your right. 2.) You should notice a whitish (fat deposits) line that runs diagonally across the heart. B. Dividing Heart into Front and Back Halves: 1.) Turn the heart so that the apex is pointing up. 2.) Using scissors, st ...
Congenital Heart Defects - respiratorytherapyfiles.net
Congenital Heart Defects - respiratorytherapyfiles.net

... • Inefficient recirculation of good blood through pulmonary arteries. ...
RAD 204 PATHOLOGY
RAD 204 PATHOLOGY

... patent ductus arteriosus persistence of embryological connection between AORTA & pulmonary trunk {Lt. main pulmonary artery} OPEN ductus arteriosus in 10% CHD, females more than males associated with maternal Rubella infection ...
Document
Document

... the abdomen (ascites) and the chest cavity (pleural effusion). This is known as right sided congestive heart failure. Rarely, the tricuspid valve orifice may also be narrowed (stenosis), leading to a more rapid development of congestive heart failure. A preliminary diagnosis of TVD may be made by yo ...
Congenital Heart Disease Internal Medicine
Congenital Heart Disease Internal Medicine

... • PDA – Persistence of the normal fetal vessel that joins the PA to the Aorta. • Normally closes in the 1st wk of life. • Accounts for 10% of all CHD, seen in 10% of other congenital hrt lesions and can often play a critical role in some lesions. • Female : Male ratio of 2:1 • Often associated w/ co ...
INTRODUCTION TO THE MODULE (MED 122 CIRCULATION AND
INTRODUCTION TO THE MODULE (MED 122 CIRCULATION AND

... A – Arteries: It carries oxygenated blood from the heart to the body except pulmonary trunk carries non oxygenated blood. It divides into smaller branches. ...
single ventricle indications and evolution
single ventricle indications and evolution

... systemic resistances  Balanced single ventricle ...
Causes of Left-Sided Heart Enlargement
Causes of Left-Sided Heart Enlargement

... not appreciably enlarged. Because the hypertrophy is concentric, the outside contour of the heart may be minimally enlarged. The disease usually progresses to include eccentric hypertrophy of both the atrium and ventricle, resulting in obvious enlargement of both chambers. ...
Introduction to cardiac conditions
Introduction to cardiac conditions

... • Left to right shunting • Most patients asymptomatic • Present 3 to 6 weeks with soft murmur and can have a large heart on x-ray. • Present with poor feeding, lower respiratory tract infection and small amount of heart failure. • Cyanosis infrequent. ...
Heart Sounds
Heart Sounds

... controlled externally by a small battery-powered coil taped to the chest. This eliminates the need for a permanent opening in the skin and allows freedom of movement to patients, as they would no longer need to be attached to a machine. While attending university, Dr. Mussivand learned that millions ...
File
File

... the sinus venosus moves to the right atrium. • As the sinus venosus moves to the right the venous drainage from the rest of the body, the head, the vitelline and umbilical veins also move to the right. • A small part of the sinus venosus still lies behind the left side of the heart, to become the co ...
The Cardiovascular System
The Cardiovascular System

... Ventricles- pump the arterial blood away from the heart ◦ Right Ventricle>>Pulmonary Artery ◦ Left Ventricle>>Aorta ...
Ventricular Septal Defect
Ventricular Septal Defect

... o Normal maturation of pulmonary vascular bed  Usually occurs by 2 months of age  RV pressure usually drops to ~ 1/3rd to ½ of LV pressure by ~ 2 weeks; however in the presence of a VSD, RV pressure may take longer to decrease. o Allows for development of pulmonary overcirculation ...
Gastrointestinal System Defects
Gastrointestinal System Defects

... of the aorta.  It may present itself as early as birth or in late childhood.  The signs are usually high blood pressure, or a higher blood pressure in the arms than in the legs.  Older children sometimes complain of leg cramps.  Surgery to correct this will equalize the blood pressure in the upper a ...
Ch. 23 Presentation
Ch. 23 Presentation

...  In all birds and mammals, the heart has four chambers: – two atria and – two ventricles. ...
Patent Ductus Arteriosus
Patent Ductus Arteriosus

... birth, thus altering the circulatory system. Blood begins to move from the right atrium to the left atrium and then to the lungs for the exchange of oxygen and carbon dioxide and the newborn begins to breath on its own. However, in some cases either of the two shunts may not close leading to health ...
Sudent`s name: ID: MCQ: Choose the correct answer to the following
Sudent`s name: ID: MCQ: Choose the correct answer to the following

... 28.  The  left  ventricle’s  myocardium  is  thicker  than  the  right  ventricle’s   myocardium  in  order  to:     (A)  Accommodate  a  greater  volume  of  blood     (B)  Increase  the  size  of  the  thoracic  cavity  during  dias ...
Student Handout - the WOW Lab at McGill University
Student Handout - the WOW Lab at McGill University

... (previous column x 2) ...
Cardiovascular System
Cardiovascular System

... of the body  Pumps blood into the right ventricle through the Tricuspid Valve (three cusps).  Collects blood using three vessels: – Superior Vena Cava-Comes from regions above the heart (upper extremities). – Inferior Vena Cava- Comes from regions below the heart. (lower extremities) – Coronary Si ...
Task 2- Cardiovascular
Task 2- Cardiovascular

... When a heart contracts and pushes blood into blood vessels, there is a specific path that the blood follows through the body. The blood moves first through pulmonary circulation and then carries on through systemic circulation. Pulmonary and systemic are the two circuits in the two-circuit system of ...
The Heart
The Heart

... Valves - aid the return of blood to the heart Transport blood towards the heart Transport deoxygenated blood only ...
Heart Anatomy - UniMAP Portal
Heart Anatomy - UniMAP Portal

... Each artery further subdivides into more, smaller branches to supply the entire heart with blood. ...
Sheep Heart Dissection Lab
Sheep Heart Dissection Lab

... Locate the visceral pericardium, which appears as a thin, transparent layer on the surface of the heart. Also note the abundance of fat along the paths of various blood vessels. This adipose tissue occurs in the loose connective tissue that underlies the visceral pericardium. Identify the following: ...
File - Respiratory Therapy Files
File - Respiratory Therapy Files

... • Increased pulmonary blood flow may lead to pulmonary edema. – Reduced blood flow to all postductal organs • NEC ...
The Heart and Circulation - Verbum Dei High School Science
The Heart and Circulation - Verbum Dei High School Science

... • Which parts of the circulatory system deliver oxygen-rich blood to the rest of the body? 1. the left ventricle and the pulmonary vein 2. the left atrium and the capillaries 3. the atria and the pulmonary artery 4. the left ventricle and the aorta ...
< 1 ... 116 117 118 119 120 121 122 123 124 ... 148 >

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.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report