axillary artery is a continuation of subclavian artery and it itself continue as brachial artery
its 6 branches
three devisions
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Language: en
Added: Apr 06, 2017
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Axillary artery and its applied BY Dr. Mayur Sayta
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. Axillary Artey
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 Branches
Superior Thoracic A: Small branch Between Pect . Major & Minor Supplies them & thoracic wall
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 Acromiothoracic artery
Given at Lower border of pect . minor Ant. axillary LN lies along it Larger in females, supplies breast tissue Lateral thoracic Artery
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 Subscapular Artery
Given at the lower border of subscapularis Winds around surgical neck of humerus Anastomoses with post circumflex humeral Artery Ascending branch Ant circumflex humeral Artery
Larger Runs backward, through quadrangular space along with Axillary N Supplies shoulder joint, Deltoid mus. Post circumflex humeral Artery
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 . Relations of First Part
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
laterally 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 .
Anteriorly ( i ) Skin. (ii) Superficial fascia. (iii) Deep fascia. (iv) Pectoralis major. (v) Pectoralis minor Relations of Second Part
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.
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 . Relations of Third Part
Laterally ( i ) Coracobrachialis. (ii) Musculocutaneous nerve in the upper part , ( iii) Lateral root of median nerve in the upper part, ( iv) 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
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 Applied
1.Axillary artery is a continuation of which artery? S upraclavicular artery Subclavian artery Subscapular artery Superior thorasic artery 2. Which structure devides the artery into 3 parts Pectoralis major muscle Clavipectoral fascia Pectoralis minor muscle Teres minor muscle MCQ
3.Which is the branch from 2 nd part of axillary artery Acromiothorasic artery Lateral thorasic artery None of the above Both of the above 4. Which is not true… Pectoralis minor and major lies anterior to axillary artery Axillary vein lies medial to axillary artery Subscapularis muscle lies lateral to axillary artery Radial nerve and axillary nerve lies posterior to axillary artery
5. Largest branch of axillary artery Subscapular artery Posterior circumflex humeral artery Acromiothorasic artery Brachial artery