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Image Based Question – 74213

Question

In the given cross-section of axilla, the structures marked are:

A. Lateral cord of brachial plexus, 2-long thoracic nerve, 3-subscapularis

B. 1 -Posterior cord ofbrachial plexus. 2-nerve to serratus anterior, 3-subscapularis

C. l-Medial cord of brachial  plexus, 2-long thoracic nerve, 3-subscapularis

D. 1-Lateral cord of brachial plexus, 2-long thoracic  nerve, 3-serratus anterior

 

Show Answer

Correct Answer » C

Explanation

Ans: C. l-Medial cord of brachial  plexus, 2-long thoracic nerve, 3-subscapularis

(Ref: Grey’s 41/e 033 40/e p811)

Axilla:

  • Contains axillary vessels, infraclavicular part of  brachial plexus & its branches, lateral branches of some intercostal nerves, many lymph nodes and vessels, loose adipose areolar tissue and, in many instances, the `axillary tail’ of the breast.
  • Axillary vessels & brachial plexus run from apex to base along lateral wall, near to anterior wall.
  • Axillary vein is anteromedial to artery.
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