390 LYMPHATICS OF THE UPPER EXTREMITY. 



near the origin of the occipito-frontalis muscle ; posterior auricular, be- 

 hind the ear ; parotid, in the parotid gland ; zygomatic, in the zygomatic 

 fossa ; buccal, upon the buccinator muscle ; and submaxillary, beneath 

 the margin of the lower jaw. There are no deep lymphatic glands 

 within the cranium. 



The Superficial cervical lymphatic glands are few in number and 

 small ; they are situated in the course of the external jugular vein, be- 

 tween the sterno-mastoid and trapezius muscles, at the root of the 

 neck, and about the larynx. 



The Deep cervical glands (glandulae concatenates) are numerous and 

 of large size ; they are situated around the internal jugular vein and 

 sheath of the carotid arteries, by the side of the pharynx, oesophagus, 

 and trachea, and extend from the base of the skull to the root of the 

 neck, where they are in communication with the lymphatic vessels and 

 glands of the thorax. 



The Superficial lymphatic vessels of tJie head and face are disposed 

 in three groups ; occipital, which take the course of the occipital vein 

 to the occipital and deep cervical glands ; temporal, which follow the 

 branches of the temporal vein to the parotid and deep cervical glands ; 

 and facial, which accompany the facial vein to the submaxillary lym- 

 phatic glands. 



The Deep lympJiatic vessels of the head are the meningeal and cere- 

 bral ; the former are situated in connection with the meningeal veins, 

 and escape through foramina at the base of the skull, to join the deep 

 cervical glands. The cerebral lymphatics, according to Fohmann, are 

 situated upon the surface of the pia mater, none having yet been dis- 

 covered in the substance of the brain. They pass most probably 

 through the foramina at the base of the skull, to terminate in the deep 

 cervical glands. 



The Deep lymphatic vessels of the face proceed from the nasal fossae, 

 mouth, and pharynx, and terminate in the submaxillary and deep 

 cervical glands. 



The Superficial and deep cervical lymphatic vessels accompany the 

 jugular veins, passing from gland to gland, and at the root of the 

 neck communicate with the thoracic lymphatic vessels, and terminate, 

 on the right side, in the ductus lymphaticus dexter, and, on the left, in 

 the thoracic duct, near its termination. 



LYMPHATICS OF THE UPPER EXTREMITY. 



The Superficial lymphatic glands of the arm are not more than four 

 or five in number, and of very small size. One or two are situated 

 near the median basilic and cephalic veins, at the bend of the elbow ; 

 and one or two near the basilic vein, on the inner side of the upper 

 arm, immediately above the elbow. 



The Deep glands in the fore-arm are excessively small and infre- 

 quent; two or three may generally be found in the course of the 



