CVS - Heart & its Vessels Flashcards
Aortic arch gives rise to which branches? (3)
Brachiocephalic trunk (right subclavian + right common carotid)
Left common carotid artery
Left subclavian artery
Where does the right recurrent layrngeal nerve loop around?
Right subclavian artery
Where does the left recurrent laryngeal nerve loop around?
Aortic arch
What structures make up the right heart border?
SVC
Right atrium
IVC
What structures make up the left heart border?
Left pulmonary artery
Left auricular appendage
Left ventricle
Where is the right (anterior) atrioventricular groove?
Between RA and RV
What lies in the right atrioventricular groove? (2)
Right coronary artery (RCA)
Tricuspid valve
Where does the anterior interventricular groove lie?
Between RV and LV
What lies in the anterior interventricular groove?
Left anterior descending (LAD)
Where is the posterior (left) atrioventricular groove?
Between LA and LV
What lies in the posterior atrioventricular groove? (3)
Circumflex artery
Coronary sinus
Mitral valve
Name the branches that come off the RCA. (2)
Right marginal artery
Posterior interventricular artery (PIA) –> in 70%
Name the branches that come off the LAD (2)
Circumflex artery –> PIA (in 10%), obtuse marginal arteries
Diagonals
Which artery supplies the SA node?
PIA (posterior interventricular artery)
What innervates the SA node?
Vagus nerve
Sympathetic nerves
