UL Blood Supply - ANAT Exam 2

Subclavian aa

• Location: 1st rib

• Becomes: Axillary aa

Axillary aa

• 5 branch artery

  • Superior thoracic aa

  • Thoracoacromial aa

  • Lateral thoracic aa

  • Subscapular aa

  • Humeral circumflex aa

Superior thoracic aa

• Proximal Axillary aa

• Supplies blood to:

  • Intercostals

  • Serratus anterior

Thoracoacromial aa

• Middle Axillary aa

• 4 branches:

  • Acromial

  • Pectoral

  • Clavicular

  • Deltoid

Lateral thoracic aa

• Middle Axillary aa

• Supplies blood to:

  • Pectoralis major & minor

  • Serratus anterior

  • Intercostals

Subscapular aa

• Distal Axillary aa

• Supplies blood to:

  • Latissimus dorsi

  • Scapular mms

• 2 branches

  • Thoracodorsal aa

  • Scapular circumflex aa

Humeral circumflex aa

• Distal Axillary aa

• Supplies blood to:

  • Deltoid

  • Teres major & minor

• 2 branches:

  • Anterior & posterior

Brachial aa

• Runs along medial biceps brachii mm

• Splits in cubital fossa

  • Proximal = deep brachial aa

  • Distal = ulnar collateral aa

Deep Brachial aa

• Descends to hand along posterior humerus

• Supplies blood to: Posterior arm mm

Radial aa

• lateral branch of Brachial aa

• Terminates in the deep palmar arch

• The “pulse” aa

Radial recurrent aa

• Proximal branch of Radial aa

• Forms anastomoses with deep brachial artery

• Supplies blood to: Elbow

Ulnar aa

• Medial branch of Brachial aa

• Terminates in Superficial palmar arch

Ulnar recurrent aa

• Proximal branch of Ulnar aa

• Forms anastomoses with Ulnar collateral aa

• Supplies blood to: El

Dorsal veinous network

• Location: Dorsal hand

• Drains: to cephalic & basilic vv

Cephalic vv

• Location: Between deltoid & Pectoralis major

  • “Deltopectoral groove”

• Drains to: Axillary vv

Medial Cubital vv

• Location: Cubital fossa

• Drains to: Basilic vv

  • Connects cephalic vv to basilic vv

Basilic vv

• Location: Medial side of UL

• Drains to: Brachial vv

  • Then to Axillary vv