axillary nerve


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Related to axillary nerve: radial nerve, musculocutaneous nerve, suprascapular nerve

ax·il·lar·y nerve

[TA]
nerve that arises from the posterior cord of the brachial plexus in the axilla, passes laterally and posteriorly through the quadrangular space with the posterior circumflex humeral artery; muscular branches pass to the teres minor and wind around the surgical neck of the humerus to the deltoid; terminates as the superior lateral brachial cutaneous nerve.

axillary nerve

one of the last two branches of the posterior cord of the brachial plexus before the posterior cord becomes the radial nerve. It divides into a posterior branch and an anterior branch. The posterior branch innervates the teres minor, part of the deltoideus, and part of the skin overlying the deltoideus; the anterior branch innervates the deltoideus. Some fibers of the nerve also supply the capsule of the shoulder joint.

ax·il·lar·y nerve

(ak'sil-ār-ē nĕrv) [TA]
Arises from the posterior cord of the brachial plexus in the axilla, passes laterally and posteriorly through quadrangular space with the posterior circumflex artery, winding round the surgical neck of the humerus to supply the deltoid and teres minor muscles, terminating as the superior lateral brachial cutaneous nerve.
Synonym(s): nervus axillaris [TA] .

axillary

of or pertaining to the armpit.

axillary lymph node
buried deeply between the shoulder muscles and the chest wall; palpable in the living animal only when significantly enlarged and hard.
axillary nerve
see Table 14.
axillary nerve lesion
characterized by atrophy of the deltoid muscle.
axillary nodular necrosis
small, round, hard nodules at the girth or near the axilla in horses.
References in periodicals archive ?
The axillary nerve is formed as a terminal branch of the posterior cord at the lateral border of subscapularis, as it winds towards the posterior aspect of the surgical neck of the humerus (6,7,9,10) (Figures 1 and 2).
However, individual blockade of both the suprascapular nerve and the axillary nerve should provide analgesia to a significant proportion of the joint.
A Medline search for axillary nerve block and circumflex nerve block revealed no description of this procedure.
Three upper limb orthopaedic surgeons were consulted as to any potential hazards they could see performing axillary nerve block in this setting, all three observing placement of the block.
The safest and most consistent point at which to block the axillary nerve is immediately following the nerve's passage through the quadrilateral space to lie posterior to the humerus.
This represents a vertical plane through which the axillary nerve passes laterally, at the level of the horizontal plane.
5 cm from the lateral prominence of the greater tuberosity, the axillary nerve and posterior humeral circumflex vessels were identified, isolated, and protected with a vessel loop (Fig.
8,9) The course of the axillary nerve after it exits the quadrilateral space has been well described, (10-16) but its position in relation to the raphe has only recently been reported.
Innervation of the deltoid is from the axillary nerve, which arises from the posterior cord of the brachial plexus and passes through the quadrilateral space dividing into anterior and posterior branches.
8,9,12,17,18) Recent data has shown that the anterior motor branch of the axillary nerve crosses the raphe at a predictable location relative to the acromion and greater tuberosity, (6) which allows more direct access to the proximal humerus after protecting the axillary nerve.
The posterior humeral circumflex artery passes through the quadrilateral space with the axillary nerve.
The patient was diagnosed as having transient radial and axillary nerves palsy due to intraoperative malpositioning.