Intro Lecture Flashcards
1
Q
Why can blocked coronary arteries lead to a heart attack?
A
- they supply oxygenated blood to the myocardium
- few anastomoses
- prone to atheroscleroma
2
Q
Where is the locus of the heart in regards to the rib cage?
A
between 3rd and 5th Costal cartilage
between 2nd and 5th intercostal space
3
Q
Name the layers of the pericardium/heart
A
fibrous layer (outer), parietal layer (outer serous layer), pericardial cavity, visceral layer (inside serous layer)/ epicardium, myocardium, endocardium.
4
Q
Where is the transverse pericardial sinus located?
A
Posterior to the ascending aorta and pulmonary trunk, anterior to the left ventricle and superior vena cava.
5
Q
Where is the oblique sinus located?
A
Posterior to the left atrium, (J-shaped gap).
