108 ANATOMY. 



Nutrient Branch, enters the nutrient canal. 



Inferior Profunda, to the elbow-joint anastomosis. 



Anastomotica Magna, anastomoses with the posterior articular, inferior pro 

 funda, anterior and posterior ulnar recurrent. 



Muscular Branches, to the muscles in the course of the artery. 



Describe the Radial. It extends from the bifurcation of the brachial to the 

 deep palmar arch, and gives off the following branches respectively, in the fore- 

 arm, the wrist, and the hand, viz. 



Radial Recurrent. Posterior Carpal. Princeps Pollicis. 



Muscular. MetacarpaL Radialis Indicts. 



Superficialis Volts. Dorsalis Pollicis. Perforantes. 



Anterior Carpal. Dorsalis Indicts. Interossea. 



Name the Branches of the Ulnar. It extends from the division of the 

 brachial to the superficial palmar arch. It has 8 branches, viz. 



Anterior Ulnar Recurrent. Muscular. Deep or Communicating 



Posterior Ulnar Recurrent. Anterior Carpal. Branch. 



Interosseous \ Posterior Carpal. Digital. 



I Posterior. 



Describe the Palmar Arches. The Superficial Palmar Arch is that part 

 of the ulna artery lying in the palm of the hand, and anastomosing with 

 the superficialis volae from the radial, and a branch from the radialis indicis, at 

 the root of the thumb. It gives off 4 branches, the digital, to the sides of the 

 fingers, except the inside of the index finger, which is supplied by the radialis 

 indicis. The Deep Palmar Arch is formed by the palmar portion of the radial 

 artery anastomosing with the deep or communicating branch of the ulna. It 

 gives off the radialis indicis, palmar interosseae, perforating and recurrent 

 branches. 



Describe the Thoracic Aorta. It begins on the left of the spine, at the 

 lower border of the 3d dorsal vertebra, and ends at the aortic opening in the 

 diaphragm directly in front of the last dorsal vertebra. Its branches are as 

 follows : 



Pericardiac Branches, irregular in number and origin. 



Bronchial, also vary in number and origin ; generally one on the right side 

 and two on the left. They nourish the lungs. 



(Esophageal, 4 or 5, anastomose on the oesophagus with branches of the in- 

 ferior thyroid, phrenic, and gastric. 



Posterior Mediastinal, numerous small vessels. 



Intercostals, usually 10 on each side, each dividing into an anterior and a 

 posterior branch. The anterior divides again into two along the adjacent 

 borders of the ribs, supplying the intercostal muscles and anastomosing with 



