Axillary Artery Anatomy

At the upper border of the teres major muscle

At the lateral border of the 1st rib (correct)

As a continuation of the brachial artery

At the lower border of the teres major muscle

Carotid artery

Subclavian artery

Brachial artery (correct)

Femoral artery

As a continuation of the subclavian artery

At the lower border of the teres major muscle (correct)

At the upper border of the teres major muscle

At the lateral border of the 1st rib