Vessels Thoracic limb

Question 1

Main arteries of the thoracic limb

Answer 1

-Subclavian artery

-Axillary artery

-Brachial artery

-median artery

Question 2

Subclavian artery arises from where

Answer 2

-left subclavian = aorta

-right subclavian = brachiocephalic trunk which arises from aorta

Question 3

What does the subclavian artery become after it passes lateral to first rib

Answer 3

It becomes the axillary artery

Question 4

Superficial cervical artery

Answer 4

Branch of the subclavian artery that supplies blood to the superficial muscles of the base of the neck superficial cervical inn and muscles of the scapula and shoulder

Question 5

Axillary artery branches
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Answer 5

• external thoracic artery = superficial to pectoral muscle
• lateral thoracic artery = deep to pectoral altissimo dorsi cutaneous trouncing skin and mammae in females
• subscapular artery= to shoulder muscles scapula long head of triceps rhomboideus trapezius (branches into thoracodorsal artery and caudal circumflex numeral artery)
• cranial circumflex humeral artery = to biceps brachiocephalic shoulder joint (forms anastomosis with caudal circumflex numeral and subscapular)
• brachial artery = branches into deep brachial artery, bicipital artery, collateral ulnar artery, superficial brachial artery, transverse cubical artery, common interosseous artery , and median artery

Question 6

Branches of the brachial artery (which is a branch of the axillary artery)
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Answer 6

• deep brachial artery = to triceps brachial muscle

-bicipital artery = to biceps brachii muscle

• collateral ulnar artery = to triceps brachii ulnar n and elbow
• superficial brachial artery = gives rise to cranial superficial antebrachial artery
• transverse cubical artery = to elbow and adjacent muscles
• common interosseous artery = branches into ulnar artery and cranial and caudal interosseous artery
• median artery = branches into deep antebrachial artery radial artery and median artery

Question 7

Median artery

Answer 7

Branch of the brachial artery which is a branch of the axillary artery

Principle source of blood supply to manus of the dog forms the superficial palmar arch with a branch of the caudal interosseous artery

Question 8

Branches of the subscapular artery (which is a branch of the axillary artery)

Answer 8

Throacodorsal artery = to latissimus dorsi there’s major and skin

Caudal circumflex humeral artery = to triceps brachii deltoideus, Coraco-brachialis, infraspinatus, shoulder joint
-forms an anastomosis with cranial circumflex numeral and subscapular arteries

Question 9

Four levels of blood supply to the digits

Answer 9

• dorsal superficial
  -dorsal deep
• palmar superficial
• Palmer deep

Question 10

Palmer superficial

Answer 10

Palmer common digital
- Palmer common digital artery II
- Palmer common digital artery III

Question 11

Dorsal superficial

Answer 11

Dorsal common digital
-dorsal common digital artery III

Question 12

Dorsal deep

Answer 12

Dorsal metacarpal
-dorsal metacarpal artery III

Question 13

Palmer deep

Answer 13

Palmer metacarpal
-Palmer metacarpal artery III

Question 14

Artery supply to digits

Answer 14

Abaxial dorsal proper digital arteries
Abaxial Palmer proper digital arteries
Axial Dorsal proper digital arteries
Axial Palmer proper digital arteries

Question 15

Veins of the thoracic limb

Answer 15

• subclavian vein

-axillary vein

-brachial vein

-median vein

Question 16

Cephalic vein

Answer 16

Arises = Palmer aspect of the manus and courses on the cranial aspect of the antebrachium

Passes deep to brachiocephalicus in shoulder region

Drains= into external jugular vein

Question 17

Axillobrachial vein

Answer 17

From cephalic vein to axillary vein

Question 18

Omobrachial vein

Answer 18

From axillobrachial vein to external jugular vein

Passes superficial to brachiocehpalicus muscle

**typically not present in cats

Question 19

Accessory cephalic vein

Answer 19

Arises = from veins on the dorsal surface of manus (dorsal common digital veins)

Joins the cephalic vein on cranial aspect of the digital third of the antebrachium

Question 20

Median cubical vein

Answer 20

Connects brachial/median vein with cephalic vein

Question 21

Lymphatic structures

Answer 21

• lymphatic capillaries and vessels

Question 22

Lymph nodes in thoracic limb

Answer 22

• superficial cervical lymph notes (pre scapular)

-axillary lymph center
-axillary lymph nodes
- accessory axillary lymph nodes