Anatomy of the Heart Review Practice Test.
A proximal LAD lesion is a blockage in the left anterior descending artery, also known as the anterior interventricular artery. Explain why a heart attack caused by an obstruction of this artery is sometimes referred to as the "widow maker" heart attack...
Anatomy of the Heart Review Practice
Test.
A proximal LAD lesion is a blockage in the left anterior descending artery, also known as the anterior
interventricular artery. Explain why a heart attack caused by an obstruction of this artery is sometimes
referred to as the "widow maker" heart attack. - CORRECT ANSWER A blockage in the anterior
interventricular artery prevents oxygen from reaching cardiac muscle cells in both ventricles. The atria
are not powerful enough to pump blood to the lungs and body.
Congestive heart failure (CHF) is an inability of the heart to pump sufficient blood to the body. One sign
of CHF is excess fluid in the tissue spaces, known as edema. Describe the location of the edema if the left
side of the heart fails. - CORRECT ANSWER Lungs
Name the ridged bundles of muscle found projecting inside the right atrium. - CORRECT ANSWER
Pectinate muscles
Identify the right atrioventricular valve. - CORRECT ANSWER Tricuspid valve
Identfiy the valve located at the exit of the right ventricle. - CORRECT ANSWER Pulmonary semilunar
valve
The moderator band is found on both the right and left side of the heart. - CORRECT ANSWER False
Oxygenated blood flows through the right side of the heart. - CORRECT ANSWER False
Identify the most muscular chamber. - CORRECT ANSWER Left ventricle
Name the inner lining of the heart. - CORRECT ANSWER endocardium
Identify the valve found between the left atrium and left ventricle. - CORRECT ANSWER Bicuspid (mitral)
valve
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