Upper Limb: 
Abduction of shoulder joint 
  • from 0 - 15* - Supraspinatus muscle
  • 15 to 90* - Acromial fibers of deltoid
  • 90* and above - Over head abduction by Serratus anterior, Trapezius, Lateral rotation of scapula.
v Paralysis of deltoid leads to flat shoulder
Axillary nerve supplies to
ü  Deltoid
ü  Teres minor
ü  Cutaneous branch – superior lateral cutaneous nerve of axillary nerve
   *Regimen batch sign – if sensation is lost (Axillary N.)
Structures Lying in
·        Delto-pectoral groove – Cephalic Vein
·        Ilio-psoas groove – Femoral nerve
·        Tracheo-oesophageal grove – Recurrent laryngeal nerve
Cephalic vein - formed by joining of lateral end of dorsal venous arch with the 1st metacarpal vein
·        It lies in the roof of anatomical snuff box
·        It lies in deltopectoral groove
·        It pierces the clavipectoral fascia
·        It drains into axillary vein


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