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MUSCULOCUTANEOUS NERVE

Anatomy-Upper Limb

MUSCULOCUTANEOUS NERVE

ORIGIN
1. Origin: from the lateral cord of the brachial plexus, C5, 6, 7.
2. Lies lateral to the axillary a.
3. Descends past lateral border of pactoralis minor.

COURSE & SUPPLY
4. Supplies the shoulder joint.
5. Pierces through the CORACOBRACHIALIS, supplying this muscle.
6. It then passes b/w the BICEPS + BRACHIALIS (supplying both muscles), accompanied by branches/tributaries of the brachial artery + vein.
7. Its remaining fibers, purely cutaneous now, appears at the lateral margin of the biceps tendon as the lateral cutaneous nerve of the forearm.


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REFERENCES

1. Mcminn. (2003). Last's Anatomy. Elsevier Australia. ISBN:0729537528. Read it at Google Books - Find it at Amazon
2. Netter, F. H. (2019). Atlas of human anatomy. Philadelphia, PA: Elsevier.
3. Image: Gray, Henry. Anatomy of the Human Body. Philadelphia: Lea & Febiger, 1918; Bartleby.com, 2000. www.bartleby.com/107/ [Accessed 21 Nov. 2018].

Ⓒ A. Manickam 2018

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