Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
29 Cards in this Set
- Front
- Back
|
What travel in the atrioventricular groove between the atria and ventricles and what do they supply blood to?
|
Left and Right coronary arteries, heart wall
|
|
|
What are the only branches of the ascending aorta?
|
L and R coronary arteries
|
|
|
Where do the L and R coronary arteries exit?
|
ascending aorta immediately superior to the aortic semilunar valve.
|
|
|
What is the most common cause of death in the U.S.?
|
Coronary atherosclerosis or heart disease
|
|
|
What is Angina pectoris?
|
poorly localized pain sensation in the left side of the chest, the left arm and shoulder, or sometimes the jaw and/or the back.
|
|
|
Where is pain from Angina referred?
|
T1-T5 dermatome
|
|
|
What is an MI
|
potentially fatal, resulting from sudden and complete occlusion (blockage)of a coronary artery.
|
|
|
What is a poorly localized pain sensation in the left side of the chest, the L arm and shoulder, or sometimes the jaw and/or back?
|
Angina pectoris
|
|
|
What is ischemia?
|
Characterized by inadequate supply of O2 and blood to a part of the body.
|
|
|
What travel in the atrioventricular groove between the atria and ventricles and what do they supply blood to?
|
Left and Right coronary arteries, heart wall
|
|
|
What are the only branches of the ascending aorta?
|
L and R coronary arteries
|
|
|
Where do the L and R coronary arteries exit?
|
ascending aorta immediately superior to the aortic semilunar valve.
|
|
|
What is the most common cause of death in the U.S.?
|
Coronary atherosclerosis or heart disease
|
|
|
What is Angina pectoris?
|
poorly localized pain sensation in the left side of the chest, the left arm and shoulder, or sometimes the jaw and/or the back.
|
|
|
Where is pain from Angina referred?
|
T1-T5 dermatome
|
|
|
What is an MI
|
potentially fatal, resulting from sudden and complete occlusion (blockage)of a coronary artery.
|
|
|
What is a poorly localized pain sensation in the left side of the chest, the L arm and shoulder, or sometimes the jaw and/or back?
|
Angina pectoris
|
|
|
What is ischemia?
|
Characterized by inadequate supply of O2 and blood to a part of the body.
|
|
|
What is silent myocardial ischemia?
|
painless (characterized by inadequate supply of O2 and blood to heart)
|
|
|
What is heart pain?
|
Angina pectoris, cuased by deprival of O2 to coronary veins.
|
|
|
Where do cardiac veins collect deO2 blood and wastes from?
|
myocardial capillaries.
|
|
|
Where do all of the cardiac veins drain into?
|
Coronary sinus.
|
|
|
What is the coronary sinus?
|
A large vein that lies in the posterior aspect of the atrioventricular groove.
|
|
|
Where does blood from the coronary sinus drain?
|
directly into the right atrium of the heart.
|
|
|
When does most coronary flow occur? Relaxation or contraction?
|
Diastole!
|
|
|
What is tachycardia?
|
An abnormally increased heart rate (greater than 100 bpm), shortens diastole and reduces blood flow to the ventricular myocardium.
|
|
|
What is hypotension?
|
Abnormally low blood pressure, can also reduce the ability of blood to flow though the ventricular myocarium.
|
|
|
What term is used for abnormally low bp, can also reduce the ability of blood to flow through the ventricular myocardium?
|
hypotension
|
|
|
Under certain circumstances, coronary flow may be reduced, especially to the regions immediately external to the endocardium, what 2 conditions can occur when blood flow through the ventricular myocardium is disrupted?
|
tachycardia and hypotension
|
