axilla Flashcards
1
superior thoracic - is quite small
- anterior
- supplies both pectoral muscles
- thoracic wall
- breast
2
thoracoacromial artery - ABCD
- Quite short artery
- Originates from the anterior surface of axillary artery just posterior to the medial margin of the pectoralis minor muscle
- It curves around the muscle, penetrates the clavipectoral fascia, and divides into four branches
- Acromial, Breast (Pectoral), Clavicular & Deltoid
3
lateral thoracic artery
- Originates from the anterior surface of axillary artery posterior to the lateral margin of the pectoralis minor
- It follows the margin of the muscle to the thoracic wall to supply medial & anterior walls of the axilla.
- Pectoral and Serratus Anterior muscles
- In women, contributes to the vascular supply of the brea
4
subscapular
Largest branch of the axillary artery & major blood supply to the posterior wall of the axilla
- Follows the inferior margin of the subscapularis muscle & divides into 2 terminal branches:
- The circumflex scapular artery
- The thoracodorsal artery
5
anterior circumflex humeral
- The anterior circumflex humeral artery passes anterior to the surgical neck of the humerusand anastomoses with the posterior circumflex humeral artery
- Supplies branches to glenohumeral joint & head of humerus
6
posterior circumflex humeral artery
- With the axillary nerve, it leaves the axilla by passing through the quadrangular space
- Between teresmajor & minor, triceps brachiimuscle & surgical neck of the humerus
- Curves around the surgical neck of the humerus
- Supplies surrounding muscles & glenohumeral joint
axillary sheath
extension of the deep cervical fascia
Encloses the 1stportion of axillary axillary, vein & the brachial plexus.
Local anaesthetic can be injected into the space it encloses.
Anaesthetic will be retained there & the upper limb will be anaesthetised.
Fractures of the radius and operations on the hand can be done under this axillary block
