Anatomy (Cardiovascular system) · MU Sofia

117. Axillary and brachial arteries.

Covers the axillary artery's start at the first rib, its end at teres major and its division into three parts by pectoralis minor, with the branches of each part and mnemonics for remembering them. Then follows the brachial artery's course alongside the median nerve to its terminal radial and ulnar branches, including profunda brachii and its divisions, the nutrient artery and the ulnar collateral arteries.

Inside: 4 sections · 7 labelled pictures · 13 flashcards · 2 min

Topic 13 of 36 in the MU Sofia syllabus for Anatomy (Cardiovascular system) (Medicine, Year 2). The free AceMed note covers it in 3 sections, about 231 words (2 min of reading), with 13 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 :
  • 1st → medial to the muscle
  • 2ed → behind " "
  • 3ed → lateral " ".

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Branches

  • 1st part
  • Superior thoracic artery
  • S: Pectoral muscle
  • 2ed part
  • Thoraco-acromial artery
  • A Acromial artery
  • P Pectoral art.
  • C clavicular art.
  • D Deltoid art.

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  • Lateral thoracic artery
  • S: Pectorales muscles + Serratus anterior + mammaries
  • 3ed part
  • Subscapular artery ← Largest branch
  • Thoracodorsal artery
  • S: latissimus dorsi muscl
  • 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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