Axillary (Circumflex) Nerve - Study Notes | North Idaho College

University:
North Idaho College
Course:
NURS 201 | Fundamentals Of Nursing
Academic year:

2021
Views:

228

Pages:

2
Author:

MichGar

AXILLARY (CIRCUMFLEX) NERVETYPE- Mixed Nerve (Motor & SensoryROOT VALUE:- C5-C6GRIGIN - Arises in the axilla as the smaller of the2 terminal branches of posterior card of Brachia Plexus,COURSE AND RELATIONS:-DIPANIKAR RAY(AIN AXILLAThe nerve lies:It runs laterally on the posterior wall of axilla.(i) Lateral side of radial nerre.(ii) Behind 3rd part of axillary artery.(iii) In front of subscapularis M.(B) ENTRANCE INTO QUADRNGULAR SPACEAnthe lower border of subscapularis it winds backwards in closeand relation in to the lowest part of articular capsule of shoulder jointpasses through a quadrangular space.company with the posterior circumflex hurreral vessels,For Exam(c) IN QUADRNGULAR SPACEHereHuman Anatomydivides into Ant & Post. Branch.(i) ANTERIOR DIVISION :- Along with the posterior circumflex humeral vessels,it winds round the surgical neck of humerusand supplies the: talDehoid (Anterior) (b) Skin over the lower part of DeltoidPOSTERIOR DIVISION(Cuteneous Branches)(ii)It sends the following branches. :(a) Deltoid (Posteriar part)DRAY(b) Branch to Teres minor- A Pseudoganglion (this branch contains)(e) lateral Cuteneous NerveUpper - Continuation of posterior divisiondeep fascia, at the posterior of border axillary of nerve deltoid. after piercing theIt It supplies skin of Deltoid (Lower part)supplies Long head of Triceps (Upper part) AXILLARY NERVE2BRANCHES(MUSCULAR, CUTENEOUS AND ARTICULAR)ATHE MAIN TRUNK:- Gives an Articular Br to the shoulder joint(entering the joint from below)BTHE ANTERIOR DIVISIONGives branches to -(a) Deltoid(b) Cuterious br to SkinTHE POSTERIOR DIVISION:- Supplies Br to[On its lower part (Deloid)DIPANKAR RAY(a) Posteriar part of Deltoid(b) Teres minorDUPPER LAT. CUTENEOUS N. OF ARM Supplies the Skin 1Human Anatomy For Exam(a) Over lower part of Deltoid.Upper lateral part of Arm.CLINICAL CORRELATIONINJURY to AXILLARY NERVE:-(D Fracture of Surgical Neck(2) Dislocation of shoulder joint(when read of Humans dislocates down)EFFECTS:-IMPAIRED ABDUCTION OF SHOULDER: :- Paralysis of deltoid & Teres minorM.(MOTOR AFFETION)Inability to abduct shoulderLoss OF SENSATIONfrom 15° to 90 (Action of Deltoid)(SENSORY Loss):- Over the lower half of Deltoid, due to involvementof the upper lateral suteneous n. of the arm.Loss OF SHOULDER CONTOUR :- Flat shoulder due to attuphy of deltoidleading to excessive prominence ofacromion and the lateral end of elavicle.