1. Differences in intramuscular vascular connections of human and dog latissimus dorsi muscles 
Daping Yang, MD, Steven F Morris, MD 
The Annals of Thoracic Surgery 
Volume 67, Issue 2, Pages (February 1999)
DOI: /S (98)

2. Fig 1
Arteriograms of dog (A) and human (B) latissimus dorsi muscles. The muscle receives its blood supply from the dominant thoracodorsal artery (arrows) in the proximal portion of the muscle, several segmental perforators of the posterior intercostal arteries in the midportion, and the lumber arteries in the distal portion (dots).
The Annals of Thoracic Surgery  , DOI: ( /S (98) )

3. Fig 2
Angiograms showing differences in the intramuscular anastomoses of dog and human latissimus dorsi muscles (proximal portion). In the dog muscle (A), connections between the thoracodorsal artery and the posterior intercostal arteries are formed by reduced-caliber choke arteries (arrows). In the human muscle (B), the arrows indicate five true anastomoses between the thoracodorsal artery and the posterior intercostal arteries.
The Annals of Thoracic Surgery  , DOI: ( /S (98) )

4. Fig 3
Angiogram demonstrating an extended vascular territory (above the dotted line) in the human latissimus dorsi muscle that contains both the thoracodorsal territory and the posterior intercostal territories combined by true anastomoses (arrows).
The Annals of Thoracic Surgery  , DOI: ( /S (98) )