Till': TIUGEMIXAL 



967 



Branches. The branches of the maxillary nerve are () branches given off 

 in the middle I'o.-sa of the cranium; (l>) branches given off in the plerygo-palat ine 

 (spheno-maxillary) fossa: (<) branches given off in the infra-orbital sulcus and 

 canal: and (</) terminal branches. 



(a) The middle (recurrent) meningeal branch, given oil in the middle 

 of the cranium, breaks up into numerous branches which supply the dura mater, 

 reinforce the sympathetic plexus on the middle meningeal artery. and anastomose 

 with t he spi nous nerve (t he recurrent branch of the maiidibular nerve). 



(6) The branches given off in the ptcrvgo-palatine (spheno-maxillary) fossa are 

 the spheno- palatine nerves, the x.ygomatie branch, and the posterior superior alveolar 

 nerves. 



The spheno-palatine branches, one, two, or three branches, pass downwards in 

 the pterygo-palatine fossa and give a small part of their fibres to the spheno-pala- 

 tine (Meckel's) ganglion (fig. 702), the larger part of their fibres passing to the 

 orbital, nasal, and palatine branches of the ganglion. (See SPHENO-PALATINE 

 G VX<;LION, p. 972.) 



Fro. 702. MAXILLARY NERVE SEEN FROM WITHOUT. 



JtANIIlHl'LAR OrnniM.MK' MAXII.I.AHY 



Cs 



srrKKiog 



AXTKKIOR 



Ai.rnni.AR 



BRAHCIIKS 



si'ii/-:.\'<i-f i /..i 77 .VA; 



.\7-.7. 1 I / 8 

 POSTERIOR INFERIOR NASAL'' 



SUPERIOR POSTKHinii 

 ALVEOLAR BRA.-x II l:s 



OIKOIVAl 

 BRANCHES 



SITKRIOK M Kill A L .1 LKVOLAR BRANCH 



The zygomatic (orbital or temporo-malar) branch, given off from the upper 

 surface of. the maxillary nerve, passes forwards and lateralwards, and, at the end of the 

 inferior orbital (spheno-maxillary) fissure, passes through it into the orbit and divides 

 into two branches, facial and temporal. 



The zygomatico-facial (malar) branch runs forwards, passes through a zygo- 

 matico-orbital foramen, then through the zygomatico-facial (malar) foramen, 

 pierces the orbicularis oculi, communicates with the zygomatic (malar) branch of the 

 seventh nerve, and supplies the skin of the prominence of the cheek. The zygo- 

 matico-temporal (temporal) branch runs upwards in a groove in the outer wall of 

 the orbit, passes through a /.ygomatico-orbital foramen, then through the zygomatico- 

 temporal (spheno-malar) foramen, and enters the temporal fossa. It turns around the 

 anterior border of the temporal muscle, pierces the deep layer of the temporal fascia, 

 and runs backwards for a short distance in the fat between the superficial and deep 

 lamella^, then, turning outwards, it pierces the superficial lamella' about an inch 

 above the zygoma, anastomoses with the temporal branch of the facial nerve, and 

 supplies the skin of the anterior part of the temporal region. 



Three sets of superior alveolar nerves arise from the maxillary and the infra- 



