450 



ANATOMY IX A NUTSHELL. 



spinal muscles and a small one which passes to the spinal cord and its mem- 

 brane. The profundus cervicis most always comes from the superior inter- 

 costal, but it may come from the subclavian artery itself. It ascends under 

 the Complexus muscle as far the axis to anastomose with the deep branch of the 

 arteria princeps cervicis. 



The relation— of the thoracic aorta are given on page 286. and its 

 branches arc (1) pericardiac, which are small arteries and are distributed To 

 the pericardium. (2) the bronchial arteries are nutrient arteries to the lungs. 

 The one on the right side may come (A) from the first aortic intercostal, 



PLATE CCXL. 



PARITTAL 

 FORAMEN. 



TEMPORAL 



R,DGES - jurtu :^*~ 



ART , LT'5 Wl 

 SPHENOID. 



SQUAMOUS PORTION, 

 TEMPORAL MUSCLE. 

 ■^-EMINENCE. 



MASTOID 

 PORTION- 



External Surface of the Parietal Bone. 



(B) IT MAY COME BY A COMMON TRUNK WITH THE LEFT BRONCHIAL which collies 



from the fronl of the thoracic aorta. There are generally two on the left side. 

 These arteries nourish the bronchial tubes, the cellular tissue of the lungs, the 

 bronchial glands, and the (esophagus, (3) (Esophageal arteries are generally 

 four or five in number,and come from the front of the thoracic aorta and pass ob- 

 liquely to the oesophagus. Above they anastomose with the inferior thyroid 

 arteries, ami below with branches from the phrenic and gastric arteries. (4) 

 The posterior mediastinal arteries are small arteries which supply the glands in 

 the posterior mediastinum. 



