Infratemporal slides which are helpful in teaching of MBBS students.

1. TEMPORAL & INRFRATEMPORAL FOSSA BY:-Dr. VivekMishra MS MGMCH Jaipur

2. TEMPORAL & INFRATEMPORAL FOSSA INTRODUCTION BOUNDARY CONTENTS :- 1.MUSCLES -MUSCLES OF MASTICATION i.e -TEMPORALIS,MASSETER, LATERAL & MEDIAL PTERYGOID 2.VESSELES- MAXILLARY ART.,VEIN & PTERYGOID PLEXUS OF VEINS 3.NERVES-MANDIBULAR NERVE & OTIC GANGLION 4.TEMPOROMANDIBULAR JOINT

3. INFRATEMPORAL FOSSA

4. BONY AREA FOF INFRATEMPORAL FOSSA

5. TEMPORALIS MUSCLE

6. ORIGIN & INSERTION OF TEMPORALIS MUSCLLE

7. TEMPORAL FASCIA & MUSCLE ,MASSETER MUSCLE

8. ORIGIN & INSERTION OF MASSETER MUSCLE

9. MUSCLES IN INFRATEMPORAL FOSSA

10. ORIGIN & INSERTION OF LATERAL & MEDIAL PTERYGOID MUSCLES

11. INSERTION OF LATERAL PTERYGOID MUSCLE

12. RELATION OF LATERAL PTERYGOID MUSCLE AFTER RETRACTING RAMUS OF MANDIBLE WITH TEMPORALIS MUSCLE

13. SOME RELATIONS OF LATERAL PTERYGOID MUSCLE

14. DEEP DISSECTION OF TEMPORAL & INFRATEMPORAL REGION AFTER REMOVING A PART OF RAMUS OF MANDIBLE WITH MASSETER & INSERTION OF TEMPORALIS MUSCLE ZYGOMATIC ARCH HAS BEEN REMOVED

15. ORIGIN & COURSE OF MAXILLARY ARTERY

16. MAXILLARY ARTERY:-ORGIN COURSE & BRANCHES IN INFRATEMPORAL FOSSA

17. BRANCHES OF MAXILLARY ARTERY A.First Part:- 1.Deep Auricular Artery 2.Anterior Tympanic 3.Middle Meningeal Artery 4.Accessory Meningeal Artery 5.Inferior Alveolar Artery B.Second Part:- 1.Deep Temporal 2.Pterygoid 3.Masseteric 4.Buccal C.Third Part:- 1.Posterior Superior Alveolar 2.Infraorbital 3.Greater Palatine 4.Pharyngeal 5.Artery Of Pterygoid Canal 6.Sphenopalatine Artery [Terminal part of maxillary artery]

18. BRANCHES OF MAXILLARY ARTERY A.FIRST PART:- 1.Deep Auricular Artery 2.Anterior Tympanic 3.Middle Meningeal Artery 4.Accessory Meningeal Artery 5.Inferior Alveolar Artery

19. BRANCHES OF MAXILLARY ARTERY B.SECOND PART:- 1.Deep Temporal 2.Pterygoid 3.Masseteric 4.Buccal

20. C.Third Part:- 1.Posterior Superior Alveolar 2.Infraorbital 3.Greater Palatine 4.Pharyngeal 5.Artery Of Pterygoid Canal 6.Sphenopalatine [Terminal part of maxillary artery]

21. PTERYGOID PLEXUS OF VEINS 1-SITUATED around the lateral Pterygoid Muscle 2-Tributaries are those veins which accompany branches of maxillary artery 3-Plexus is draind by maxillary vein 4-Maxillary vein is only accompany to first part of maxillary artery 5-Maxillary vein unite with superficial temporal vein to form retromandibular vein COMMUNICATIONS:- 1.With inferior orbital vein through the inferior orbital fissure 2.With cavernous sinus through emissary vein passing through foramen lacerum & ovale 3.With facial vein through deep facial vein

22. MANDIBULAR NERVE & ITS BRANCHES SEEN IN INFRA TEMPORAL FOSSA AFTER REMOVING A PART OF MANDIBLE

23. MANDIBULAR NERVE & ITS BRANCHES SEEN IN INFRA TEMPORAL FOSSA AFTER REMOVING A PART OF MANDIBLE

24. Branches of Mandibular Nerve:- 1.From Main trunk:- [a] Meningeal branch [b] Nerve to Medial Pterygoid muscle 2.From Anterior division of trunk :- [a] Sensory-Buccal nerve [b] Motor branches to Masseter [Nerve to masseter], Temporalis[Deep Temporal nerves], Lateral PterygoidMsucle 3.From Posterior division of trunk [a] Auriculotemporal nerve [b] Lingual nerve [c] Inferior alveolar nerve

25. MANDIBULAR NERVE,ITS COURSE & BRANCHES IN INFRATEMPORAL FOSSA

26. OTIC GANGLION:-ITS CONNECTIONS

27. OTIC GANGLION Introduction:- A peripheral parasympathetic ganglion which supply secretomotor fibres to parotid gland Topographically:- It is connected to Mandibular nerve but functionally to Glossopharyngeal Nerve Size & Situation:- 2-3 mm in size & is situated in infratemporal fossa just below the foramen Ovale between Mandibular nerve [lateral side ]& Tensor Veli Palatini muscle [medial side]

28. Connections & Branches:- 1. Motor or Parasympathetic Root:- By lesser petrosal nerve The pre ganglionic fibres from inf.salivatory nucleus –IX Cn.-to- tympanic branch-to-the tympanic plexus-to-the lesser petrosal nerve to- otic ganglion The Post ganglionic fibres from otic ganglion-through- auriculotemporal nerve –to- Parotd Gland [SECRETOMOTOR TO PAROTID GLAND] 2. Sympathetic Root:- Nerve fibres from plexus on the middle meningeal artery [ These are post ganglionic fibres from sup.cervical sympathetic ganglion]-to otic ganglion-to auriculotemporal nerve –to parotd gland [VASOMOTOR IN FUNCTION] 3. Sensory Root:-Sensory fibres from parotid Gland Through auriculotemporal nerve

29. 4.Other Connections to otic ganglion:- 1. A branch from nerve to medial pterygoid which passes as such through otic ganglion to supply Tensor veli palatini & tensor Tympani 2. The Chorda tympanic nerve is connected to otic ganglion. this connection provide an alternate pathway of taste from ant.2/3 of the tongue.

30. THANKS