Venous drainage of the thoratic limb

Question 1

Which deep veins drain the forelimb?

Answer 1

• v. mediana - v. brachialis - v. axillaris - v. subclavia

Question 2

Which vein drain the caudal neck and cranial scapular region?

Answer 2

v. cervicalis superficialis

Question 3

v. cervicalis superficialis drains into…

Answer 3

v. jugularis externa

Question 4

Which veins drain into v. brachiocephalica?

Answer 4

v. subclavia and v. jugularis externa

Question 5

Left and right brachiocephalic veins join to form….?

Answer 5

v. cava cranialis

Question 6

What does V. cephalica accessoria drain?

Answer 6

The dorsal aspect of the Manus

Question 7

Route and connections of v. cephalica accessoria

Answer 7

• Runs proximally on the antebrachium
• Joins v. cephalica in the distal third of the antebrachium

Question 8

What does the v. cephalica drain?

Answer 8

The palmar aspect of the Manus

Question 9

Route and connections of v. cephalica

Answer 9

• Runs proximally over the medial palmar surface of the carpus and onto the cranial surface of the distal antebrachium, where it is joined by v. cephalica accessoria.
• Proximal to the elbow it is joined by v. mediana cubiti.
• Continues between the lateral border of m. cleidobrachialis and lateral head of the triceps, there it gives rise to v. axillobrachialis.
• Passes under the proximal m. cleidobrachialis and joins v. jugularis externa, deep to the m. cleidocephalicus pars cervicalis

Question 10

Route and connections of v. axillobrachialis

Answer 10

• Arises from v. cephalica on the lateral head of the m. triceps brachii.
• Gives off the v. omobrachialis.
• Passes under the m. deltoideus pars scapularis and caudally to the proximal humerus to join v. axillaris

Question 11

Route and connections of v. omobrachialis

Answer 11

• Arises from the v. axillobrachialis
• Runs over the m. deltoideus pars acromialis ans m. cleidocephalicus pars cervicalis.
• Joins v. jugularis externa cranially to v. cervicalis superficialis and v. cephalica