Axilla and its lymphatics

What is the shape of the axilla?

Pyramid

Where is the apex of the axillary pyramid located?

Behind the clavicle, alongside the coracoid process, and in front of the first rib

Which muscles form the anterior wall of the axilla?

Pectoralis major and pectoralis minor

What forms the medial wall of the axilla?

Serratus anterior, ribs, and intercostals

What important structures pass through the axilla?

Axillary artery, vein, brachial plexus nerves, and lymph nodes

What encloses the axillary artery, vein, and brachial plexus?

Axillary sheath

Why are the axillary lymph nodes clinically significant?

They are the primary drainage site for breast cancer spread

What is the major artery supplying blood to the upper limb passing through the axilla?

Axillary artery

Which lymph nodes are found in the axilla?

Lateral, anterior (pectoral), central, posterior, and apical lymph nodes