Anatomy::Breast

Question 1

Blood Supply Of Breast

Answer 1

• Axillary artery via lateral thoracic and acromiothoracic branches
• Internal mammry vi perforating arteris
• Intercostal arteries via lateral perforating branches

VENOUS drainage through corresponding veins

Question 2

Lymphatic Draingage to the breast

Answer 2

5 Groups of lymph nodes
- Anterior(PECTORAL) Located in the medial wall of the axilla
- Posterior(Subscapular)
Located in the posterior axillary fold and subscapular blood vessels
- Lateral(HUMERAL)
Lateral wall of the axilla,
Central:
Base of the axilla
Receive ltymph from the efferent vessels from the pectoral, subscapular and humeral axillary
Apical:
Located in the apex
Receive efferent of central, i.e all lymph nodes.

Apical
I
Cervicoaxillary canal
I
Subclavian lymphatic trunk
I I
Right Left
lymphatic duct I
I
Rt venous ‘le Thoracic trunk

Question 3

Node levels

Answer 3

Level I - Lateral to pectoralis minor
Level II- Behind pectoralis minor
Level III- Medial to pectoralis minor