Fig. 29. Superficial Vessels and Nerves of the Head. 



Skin, Parotid Gland, portion of the Orbicularis Palpebrarum and Square Muscle 

 of the Upper Lip (Quadratus Labii Superioris), have been removed. The 

 Superficial Arteries, Veins, Nerves and Muscles have been exposed by dissection. 



Light red, Arteries. Passing upward over the lower jaw is the Facial 

 Artery which shews through the Muscles as it is covered b}' them : in front of 

 the Ear the Temporal Arter}' gives off the Transverse Facial Artery. At the 

 upper border of the Orbit the Frontal Artery (a branch of the Ophthalmic Arter\- 

 which comes off the Internal Carotid) is seen and at the back is the Occipital Arter\-. 



Violet, Veins. The Facial Vein (anastomosing, at the Naso-frontal Angle, 

 with the Frontal Vein and indirectly with the Intracranial Venous System) is seen 

 communicating with the Temporal Vein which lies in front of the Pinna. Posteriorly 

 the Occipital Vein is seen. 



The Facial Nerve and its branches are white. (Cf. Figs. 33 — 38.) 



The other nerves are coloured in accordance with their area of distribution. 

 (Cf. Figs. 33-38.) 



Dark red — Ophthalmic Division of Vth Nerve. (F, i). 



Yellow — Superior Maxillary Division of Vth Nerve (F, 2). [z—t indicates 

 Zygomatico-Temporal, and z—f Temporal-Facial Branches). 



Blue — Inferior Maxillary Division of Vth Nerve (F, 3). This gives off 

 the Auriculo-Temporal Nerve (a — t) before the Inferior Dental enters its Foramen. 



Orange — Auricular Branches of Vagus {X) to the Pinna (ARNOLD). 



Black — Cervical Nerves : Great Auricular, Great and Small Occipital and 

 Superficial Cervical Nerves. 



The Duct of the Parotid Gland (Stenson's Duct) and its small tributaries 

 are coloured light brown. 



