Chest Wall

Question 1

Which ribs are breast attached to

Answer 1

Ribs 2 - 6

Axillary tail follows the lower margin of pec major

Question 2

Blood supply to the breast

Answer 2

Laterally - vessels from the axillary artery

Medially - branches from the internal thoracic artery

2-4th intercostals via superficial perforating arteries

Question 3

Lymphatic drainage of breast

Answer 3

75% drains into axillary nodes

Deep parasternal nodes

Question 4

Structure in the thoracic plane t4/5 - sternal angle

Answer 4

Aortic arch - beginning and end

SVC enters the RA

Bifurcation of the pulmonary arterial trunk

Division of the superior and inferior mediastinum

Question 5

Surface marking of the horizontal fissure

Answer 5

Follows contour of 4th rib anteriorly