N5315 - Advanced Pathophysiology - CAD,
Angina, and ACS (Lecture) Questions and
Correct Answers
Where do the coronary arteries branch off the aortic root?
✓ ~~~ Just distal to the aortic valve
What are the 2 main coronary arteries that branch off the aorta?
✓ ~~~ Left coronary artery and right coronary artery
When do both main coronary arteries fill?
✓ ~~~ During cardiac diastole
The left coronary artery branches off into which arteries?
✓ ~~~ Left anterior descending artery, left marginal artery, and left circumflex
artery
What does the left anterior descending artery do?
✓ ~~~ Supplies blood to the anterior 2/3 of the inter ventricular septum, anterior
papillary muscles, and the anterior surface of the left ventricle
What is the left marginal artery also known as?
✓ ~~~ Obtuse marginal artery
What does the left marginal artery do?
✓ ~~~ Supplies blood to the left ventricle, mostly the anterior side of the left
ventricle
What does the left circumflex artery do?
✓ ~~~ Supplies blood to the lateral and posterior walls of the left ventricle, and
the left atrium
The right coronary artery branches off into which arteries?
✓ ~~~ Right marginal artery and posterior descending artery
What does the right coronary artery do?
✓ ~~~ Supplies blood to the SA and AV nodes in the right atrium and both
ventricles.; however it supplies more blood to the right ventricle
What does the marginal artery do?
✓ ~~~ Supplies blood to the anterior and posterior portions of the right ventricle
What is the posterior descending artery also known as?
✓ ~~~ Interventricular artery
What does the posterior descending artery do?
, ✓ ~~~ Supplies blood to the posterior 1/3 of the interventricular septum, the
posterior wall of both ventricles, and the posteromedial papillary muscles
Coronary arterial blood supply can be what?
✓ ~~~ Right dominant or left dominant
What percentage of persons are right dominant?
✓ ~~~ majority; 85%
A person is said to be right dominant if what?
✓ ~~~ If the posterior descending artery arises from the right coronary artery
A person is said to be left dominant if what and what percentage of the population
does this affect?
✓ ~~~ If the posterior descending artery arises from the left circumflex artery;
8%
A person is said to be codominant if what and what percentage of the population
does this affect?
✓ ~~~ If the posterior descending artery arises from both the right and left
coronary arteries; 7%
Where does coronary artery occlusion most commonly occur?
✓ ~~~ In the left anterior descending artery, followed by the right coronary
artery and left circumflex artery
What is the most posterior portion of the heart?
✓ ~~~ The left atria
What can left atria enlargement cause?
✓ ~~~ Dysphagia (by compression on the esophagus), or can lead to
hoarseness from compression of the left recurrent laryngeal nerve which is a
branch of the vagus nerve
What causes coronary artery disease?
✓ ~~~ Atherosclerosis which occurs in the coronary arteries
What are the risk factors of coronary artery disease?
✓ ~~~ Advanced age, male gender, post-menopausal women, family history,
dyslipidemia, hypertension, smoking, diabetes, insulin resistance, obesity,
sedentary lifestyle, and a diet high in fat
An increased level of what is associated with increased risk of developing CAD?
✓ ~~~ LDL
LDL is a key player in the development of what?
✓ ~~~ Atherosclerosis
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ExamArsenal. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
