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Nerve: Posterior cord
Plan of brachial plexus. (Posterior cord is shaded gray.)
The right brachial plexus with its short branches, viewed from in front. The Sternomastoid and Trapezius muscles have been completely, the Omohyoid and Subclavius have been partially, removed; a piece has been sawed out of the clavicle; the Pectoralis muscles have been incised and reflected.
Latin	fasciculus posterior plexus brachialis
Gray's	subject #210 933
Innervates	none
From	brachial plexus - posterior divisions of the three trunks
To	subscapular, up. and low. thoracodorsal axillary radial
MeSH	[1]

The posterior cord is a division of the brachial plexus.

The posterior cord gives rise to the following nerves:^[1]

Name	Roots	Supplies
upper subscapular nerve	C7-C8	subscapularis muscle of the rotator cuff
lower subscapular nerve	C5-C6	teres major also of the rotator cuff
thoracodorsal nerve	C6-C8	latissimus dorsi muscle
axillary nerve	C5-C6	sensation to the shoulder and motor to the deltoid muscle and the teres minor muscle
radial nerve	C6-C8	triceps brachii muscle, the brachioradialis muscle, the extensor muscles of the fingers and wrist (extensor carpi radialis muscle), and the extensor and abductor muscles of the thumb

[edit] References

1. ↑ Mnemonic at medicalmnemonics.com 465

[edit] External links

• Atlas of anatomy at UMich hand_plexus - "Axilla, dissection, anterior view"
• Illustration at preventdisease.com

This box: view • talk • edit Nerves of upper limbs (primarily): the brachial plexus

supraclavicular: dorsal scapular - suprascapular - to the subclavius - long thoracic infraclavicular: lateral cord: musculocutaneous (lateral cutaneous of forearm) - lateral pectoral - lateral head of median (anterior interosseous, palmar, common palmar digital, proper palmar digital) medial cord: medial pectoral - medial cutaneous of forearm - medial cutaneous of arm - ulnar (muscular branches, dorsal branch, palmar branch, superficial branch, deep branch) - medial head of median posterior cord: subscapular (upper, lower) - thoracodorsal - axillary (superior lateral cutaneous of arm) - radial (muscular, inferior lateral cutaneous of arm, posterior cutaneous of arm, posterior cutaneous of forearm, superficial branch, deep branch, posterior interosseous) cutaneous innervation of the upper limbs

This page uses content from the English-language version of Wikipedia. The original article was at Posterior cord. The list of authors can be seen in the page history. As with Psychology Wiki, the text of Wikipedia is available under the GNU Free Documentation License.