Heart 1

Question 1

Where is the sternal angle roughly?

Answer 1

T4/T5

Question 2

Where is the heart in relation to the ribs?

Answer 2

Rib 2 to about costal space 5

Question 3

Layers of heart outisde to inside

Answer 3

Fibrous pericardium; Parietal pericardium ( NB innervated by phrenic nerve); pericardial cavity; visceral pericardium/epicardium; myocardium; endocardium

Question 4

What are the two pericardial reflections we learnt?

Answer 4

Transverse pericardial sinus (separating arteries and veins)

Oblique pericardial sinus (formed by reflection onto pulmonary veins)

Question 5

What forms the borders of the heart?

Answer 5

Right: Right Atrium
Inferior: Right Ventricle
Left: Left Ventricle
Post: Mostly Left atrium

Question 6

NB learn radiological diagram pg 8

Answer 6

learn

Question 7

What are the important coronary branches and where do they run?

Answer 7

RIGHT: Right coronary in the right atrioventricular groove (ant.); Sinoatrial branch; Right marginal branch; wraps round and AV node branch and posterior interventricular artery n post intervent. groove.

LEFT: Left coronary; left circumflex; left anterior descending in the left anterior interventricular groove. (Also known as the anterior interventricular branch of the left coronary artery)

Question 8

What are the two anastamoses of the coronary circulation?

Answer 8

Right coronary artery (posteriorly) and the left circumflex

Left anterior descending and the posterior interventricular artery

Question 9

What did we need to know in terms of the cardiac venous system?

Answer 9

The coronary sinus drains into the RA and is in the posterior atrioventricular groove