Thoracic Limb Arteries, Veins, and Lymph Nodes

What is the first main artery of the thoracic limb (from most to least proximal)?

Subclavian a.

What is the second main artery of the thoracic limb (from most to least proximal)?

Axillary a.

What is the third main artery of the thoracic limb (from most to least proximal)?

Brachial a.

What is the fourth main artery of the thoracic limb (from most to least proximal)?

Median a.

Where does the left subclavian a. arise from?

Aorta

Where does the right subclavian a. arise from?

Brachiocephalic trunk (which arises from the aorta)

When does a subclavian a. become an axillary a.?

When it passes lateral to the first rib

How many branches does each subclavian give before it continues as an axillary a.?

Four

What is the subclavian a. branch that supplies scapular and neck regions (supplies blood to the superficial muscles at the base of the neck, superficial cervical lymph nodes, muscles of the scapula, and the shoulder)?

Superficial cervical a.

What branch of the axillary artery supplies blood to the superficial pectoral m.?

External thoracic a.

What branch of the axillary artery supplies blood to deep pectoral, latissimus dorsi, cutaneous trunci, skin, and mammae in females?

Lateral thoracic a.

What branch of the axillary a. supplies blood to scapula, shoulder muscles, long head of triceps, rhomboideus, and trapezius? (branches off into two parts)

Subscapular a.

What branch of the subscapular a. supplies blood to the latissimus dorsi, teres major, and skin?

Thoracodorsal a.

What branch of the subscapular a. supplies blood to the triceps brachii, deltoideus, coracobrachialis, infraspinatus, and shoulder joint (also forms an anastomosis with cranial circumflex humeral and suprascapular aa.)?

Caudal circumflex humeral a.

What branch of the axillary artery supplies blood to the biceps brachii and shoulder joint (also forms an anastomosis with caudal circumflex humeral a. and suprascapular aa.)?

Cranial circumflex humeral a.

What is the main arterial trunk in the brachial region (a continuation of the axillary a.)?

Brachial a.

What branch of the brachial a. supplies blood to the triceps brachii m.?

Deep brachial a.

What branch of the brachial a. supplies blood to biceps brachii m.?

Bicipital a.

What branch of the brachial a. courses with the ulnar nerve and supplies blood to the triceps brachii, ulnar nerve, and elbow?

Collateral ulnar a.

What branch of the brachial a. gives rise to the cranial superficial antebrachial a.?

Superficial brachial a.

What branch of the brachial a. supplies blood to the elbow and adjacent muscles?

Transverse cubital a.

What branch of the brachial a. gives rise to the ulnar a. and the cranial and caudal interosseous a.?

Common interosseous a.

What is the continuation of the brachial artery that is both the principal source of blood supply to the manus of the dog and forms a superficial palmar arch with a branch of the caudal interosseous a.?

Median a.

What branch of the median a. can be found on the caudal aspect of the antebrachium?

Deep antebrachial a.

What branch of the median a. can be found on the medial border of the radius near the cranial aspect of the antebrachium.

Radial a.

What supplies blood to the superficial and dorsal aspect of the digits (proximal to metacarpophalangeal joint)?

Dorsal common digital a.

What supplies blood to the superficial and palmar aspect of the digits (proximal to metacarpophalangeal joint)?

Palmar common digital a.

What supplies blood to the deep and dorsal aspect of the digits?

Dorsal metacarpal a.

What supplies blood to the deep and palmar aspect of the digits?

Palmar metacarpal a.

What supplies blood to the abaxial and dorsal aspects of the digits?

Abaxial dorsal proper digital aa.

What supplies blood to the axial and dorsal aspects of the digits?

Axial dorsal proper digital aa.

What supplies blood to the abaxial and palmar aspects of the digits?

Abaxial palmar proper digital aa.

What supplies blood to the axial and palmar aspects of the digits?

Axial palmar proper digital aa.

What is the first main deep vein of the thoracic limb (distal to proximal)?

Median v.

What is the second main deep vein of the thoracic limb (distal to proximal)?

Brachial v.

What is the third main deep vein of the thoracic limb (distal to proximal)?

Axillary v.

What is the fourth main deep vein of the thoracic limb (distal to proximal)?

Subclavian v.

What superficial vein arises on the palmar aspect of the manus and courses on the cranial aspect of the antebrachium (drains into the external jugular vein and passes deep to the brachiocephalicus in the shoulder region)?

Cephalic v.

What superficial vein arises from the veins on the dorsal surface of the manus (dorsal common digital veins) and joins the cephalic vein on the cranial aspect of the antebrachium?

Accessory cephalic v.

What superficial vein runs from the cephalic v. to the axillary v.?

Axillobrachial v.

What superficial vein runs from the axillobrachial v. to the external jugular v. and passes superficial to the brachiocephalicus m. (frequently not present in the cat)?

Omobrachial v.

What superficial vein connects the brachial/median v. with the cephalic v.?

Median cubital v.

What lymph node is located cranial to the supraspinatus m. and deep to both the brachiocephalicus m. and trapezius m. (easy to be palpated cranial to the cranial border of the scapula)?

Superficial cervical lymph nodes (prescapular)

What lymph nodes are located within the fatty tissue of the axillary region, medial to the humeral joint (shoulder) and both proximal and lateral to the deep pectoral m.?

Axillary lymph nodes

What lymphs nodes are infrequent, but when present are located in the angle formed by the borders of the latissimus dorsi m. and the deep pectoral m.?

Accessory axillary lymph nodes