Axillaryartey

Human Anatomy

1. Axillary artery Dr. Heta Patel(PT) Assistant Professor ARIP CHARUSAT

2. Outline INTRODUCTION BRANCHES PARTS OF AXILLARY ARTERY APPLIED ANATOMY MNEMONICS SUMMARY

3.  Continuation of subclavian artery  Exteds from outer border of 1 st rib upto lower border of Teres major muscle  Continues as brachial artery  Closely related to brachial plexus cords  Pectoralis minor muscle divides the artery into 3 parts.

4.  1 st part: Superior Thoracic artery  2 nd part: Acromiothoracic artery Lateral Thoracic artery  3 rd part: Subscapular artery Ant circumflex humeral artery Post circumflex humeral artery

5.  Superior Thoracic A: Small branch Between Pect. Major & Minor Supplies them & thoracic wall

6.  Given at upper border of pect. minor  Four terminal branches: Pectoral – supplies pectoral muscles as well as breast Deltoid - Acromial - joins the anastomosis over acromian process Clavicular – supplies sternoclavicular joint and subclavius

7.  Given at Lower border of pect. minor  Ant. axillary LN lies along it  Larger in females, supplies breast tissue

8.  Largest branch  Runs along Lower border of subscapularis  Terminates near inferior angle of scapula  Gives Circumflex Scapular Artery - Passes through triangular intermuscular space Winds around lateral border of scapula, deep to teres minor Takes part in anastomosis around scapula

9.  Given at the lower border of subscapularis  Winds around surgical neck of humerus  Anastomoses with post circumflex humeral Artery  Ascending branch

10.  Larger  Runs backward, through quadrangular space along with Axillary N  Supplies shoulder joint, Deltoid mus.

11.  Anteriorly  (i) Skin.  (ii) Superficial fascia  (iii) Deep fascia.  (iv) Clavicular part of the pectoralis major.  (v) Clavipectoral fascia with cephalic vein, lateral pectoral nerve, and thoracoacromial vessels.

12.  Posteriorly  (i) First intercostal space with the external intercostal muscle.  (ii) First and second digitations of the serratus anterior with the nerve to serratus anterior.  (iii) Medial cord of brachial plexus with its medial pectoral branch

13. l a t e ral l y  Lateral and posterior cords of the brachial plexus.  Medially  Axillary vein  The first part of the axillary artery is enclosed (together with the brachial plexus) in the axillary sheath, derived from the prevertebral layer of deep cervical fascia.

14. Anterio r ly  (i) Skin.  (ii) Superficial fascia.  (iii) Deep fascia.  (iv) Pectoralis major.  (v) Pectoralis minor

15. Posteriorly  (i) Posterior cord of brachial plexus.  (ii) subscapularis Medially  (i) Medial cord of brachial plexus,  (ii) Medial pectoral nerve,  (iii) Axillary vein. Laterally  Lateral cord of brachial plexus.

16.  Anteriorly  (i) Skin.  (ii) Superficial fascia, (iii) Deep fascia.  (iv) In the upper part there are the pectoralis major and medial root of the median nerve.  Posteriorly  (i) Radial nerve.  (ii) Axillary nerve in the upper part, (iii) Subscapularis in the upper part, (iv) Tendons of the latissimus dorsi and the teres major in the lower part.

17.  Laterally Coracobrachialis. Musculocutaneous nerve in the upper part, Lateral root of median nerve in the upper part, Trunk of median nerve in the lower part.  Medially  (i) Axillary vein,  (ii) Medial cutaneous nerve of the forearm and ulnar nerve  (iii) Medial cutaneous nerve of arm

18.  Axial artery pulsastion can be felt against the lower part of the lateral wall of axilla In order to check bleeding from the distal part of limb - The artery can be compressed against the humerus in the lower part of the lateral wall of axilla

19. Thank you