Anatomy Bones and Muscles · MU Pleven

101. Axillary and brachial arteries

Covers the axillary artery, from its origin at the first rib to its end at the lower border of teres major, including its division into three parts by pectoralis minor and the branches arising from each part. It then moves to the brachial artery, describing its course alongside the median nerve, its termination at the neck of the radius, and its branches such as the profunda brachii and the nutrient artery.

Inside: 4 sections · 10 labelled pictures · 12 flashcards · 2 min

Topic 100 of 236 in the MU Pleven syllabus for Anatomy Bones and Muscles (Medicine, Year 2). The free AceMed note covers it in 3 sections, about 228 words (2 min of reading), with 12 flashcards.

In this note

  1. AXILLARY ARTERY
  2. Branches
  3. BRACHIAL ARTERY

AXILLARY ARTERY

  • Begins at the outer border of 1st rib as continuation of the subclavian artery.
  • Ends at the lower border of teres major by becoming the brachial artery.
  • It is divided by pectoralis minor into 3 parts:
  1. 1st → medial to the muscle
  2. 2ed → behind " "
  3. 3ed → lateral " ".

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Branches

  • 1st part
  • Superior thoracic artery
  • S: Pectoral muscle
  • 2ed part
  • Thoraco-acromial artery
  1. A Acromial artery
  2. P Pectoral art.
  3. C clavicular art.
  4. D Deltoid art.
  • "Cadavers Are Dead People"
  • Lateral thoracic artery
  • S: Pectorales muscles + Serratus anterior + mammaries
  • 3ed part
  • Subscapular artery Largest branch
  • Thoracodorsal artery
  • S: latissimus dorsi muscle
  • Circumflex scapular artery.
  • Anterior circumflex humeral
  • Post. circum humeral.

BRACHIAL ARTERY

  • It is a continuation of Axillary artery at lower border of teres major muscle.
  • Ends at the level of neck of radius by giving radial and Ulnar arteries (for the forearm).
  • Runs along with the median nerve (but the median nerve more superficially). and brachial vein.

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