The Skull and its Landmarks Part A 5 PDF

The Skull and its Landmarks Part 5 of 5 Julie Watson The Cranium – Infratemporal Fossa & Pterygopala@ne Fossa Infratemporal Fossa; An irregular shaped cavity, below and medial to the Zygoma9c arch Its borders are: Superiorly - greater wing of the sphenoid bone Inferiorly...

The Skull and its Landmarks Part 5 of 5 Julie Watson The Cranium – Infratemporal Fossa & Pterygopala@ne Fossa Infratemporal Fossa; An irregular shaped cavity, below and medial to the Zygoma9c arch Its borders are: Superiorly - greater wing of the sphenoid bone Inferiorly - medial Pterygoid muscle Anteriorly - maxilla Posteriorly - Styloid and condylar processes Medially - sphenoid and pala9ne bones Laterally - ramus and coronoid process of the mandible 3 Dontbeasalmon.net Func@ons of the Infratemporal Fossa Contains the muscles of mas@ca@on Within the fossa; lateral Pterygoid muscle & the medial Pterygoid muscle Origina9ng and inser9ng at the borders of the fossa; Masseter & temporalis muscles 4 Image from Research Gate  It serves as a passageway for many neurovascular structures Inferior alveolar nerves Maxillary artery/vein Sensory branches of the trigeminal nerve Middle meningeal vein Posterior division of the So, why is this area of mandibular nerve importance to us as clinicians? Kenning, 2021 5  6 Glidewelldental.com Medical-enc.com You Tube clip for this sec@on https://www.youtube.com/watch?v=jLrkUTIqsAM (Infratemporal fossa) 7 Pterygopala@ne Fossa Located between the Infratemporal fossa and the nasopharynx Structure, inverted pyramidal shape Its walls are formed by the maxilla, pala9ne and sphenoid bones 8  Borders Anterior: Posterior wall of the Superior: Inferior orbital Mssure maxillary sinus of the eye Posterior: Pterygoid process of Medial: Perpendicular plate of the sphenoid bone the pala9ne bone Inferior: Pala9ne bone and Lateral: Pterygomaxillary Mssure pala9ne canals Ly, 2020 9 Func@ons of the Pterygopala@ne Fossa It contains important neurovascular structures and their branches: Maxillary nerve Pterygopala@ne ganglion Maxillary artery There are seven foramina which connect the Pterygopala9ne fossa with the orbit, nasal, oral cavity, middle cranial fossa and Infratemporal fossa. Why is this fossa of importance to us? 10  11 Pocketden9stry.com You Tube clip for this sec@on https://www.youtube.com/watch?v=8ioszJmsv3o – Pterygopala9ne fossa 12  Well done! We’ve made it! We’ve Knished! 13 Keepcalms.com Summary – What have we covered in Parts 1- 5? We have found out why the cranium is important and what its func9ons are We have found out what a suture is We now know the names of the sutures that hold the cranial bones together We have learnt the names of the Cranial Bones and their implica9ons to us We have looked at the Infratemporal fossa & the Pterygopala9ne Fossa and their implica9ons to us 14 Further Reading https://www.anatomy.tv/titles https:// www.kenhub.com/en/library/anatomy/the-sphenoid-bo ne https:// radiopaedia.org/articles/pterygopalatine-fossa?lang=g b https://www.youtube.com/watch?v=JFr3BDTwMu8 (Foramina) 15 References , M (2021) Infratemporal Fossa. [online] Teach me Anatomy. Available at: https://teachmeanatomy.info/head/areas/infratemporal-fossa/ [Accessed on 8 May 2021] Sieroslawska, A. (2020) Infratemporal Fossa. [online] Ken Hub. Available at: https://www.kenhub.com/en/library/anatomy/infratemporal-fossa [Accessed on 8 May 2021] Ly, D. (2020) Pterygopalatine Fossa. [online] Ken Hub. Available at: https://www.kenhub.com/en/library/anatomy/anatomy-of-the-pterygopalatine-fossa [Accessed on 8 May] Anon. (n.d.) Sphenoid Bone. [online] Wikipedia. Available at: https://en.wikipedia.org/wiki/Sphenoid_bone [Accessed on 8 May 2021] Stone, J. (2019) Sphenoid bone. [online] teachmeanatomy. Available at: https:Complete Anatomy by Elsevier [Mobile App] [Accessed on 7 May 2021] Knapp, S. (2020) Frontal Bone. [image] Available at: https://biologydictionary.net/frontal-bone/ [Accessed on 7 May 2021] Knapp, S. (2020) Parietal Bone. [image] Available at: https://biologydictionary.net/parietal-bone/ [Accessed on 7 May 2021] Kenning//teachmeanatomy.info/head/osteology/sphenoid-bone/ [Accessed on 8 May 2021] 16 References con@nued Sanders, K. (2018) The Pterygopalatine fossa. [online] Teach Me Anatomy. Available at: https://teachmeanatomy.info/head/areas/pterygopalatine-fossa/ [Accessed on 8 May 2021] Copperwheat, A. (2020) The Ethmoid bone. [online] teachmeanatomy. Available at: https://teachmeanatomy.info/head/osteology/ethmoid-bone/ [Accessed on 9 May 2021] Yu, M. (2020). Anatomy, Head and Neck, Ethmoid Bone. StatPearls,. Accessed on 10 May 2021 Maynard, R. and Downes, N., (2019). Ethmoid Bone. Science Direct,. Accessed on 10 May 2021 Webster, S. (2009) Infratemporal Fossa. [Image] Available at: https://samwebster.net/?p=1995 [Accessed on 8 May 2021] University of Iowa (2017) Juvenile Nasopharyngeal Angiofibroma (JNA) Anatomy: the Pterygopalatine Fossa. [image] Available at: https://medicine.uiowa.edu/iowaprotocols/juvenile-nasopharyngeal-angiofibroma-jna-anatomy-pterygopalatine-f ossa [Accessed on 9 May 2021] Dental Care Blog (2013) Dental Anasthesia: Posterior Superior Alveolar Nerve Block. [image] Available at: http://eurekadent.blogspot.com/2013/02/dental-anasthesia-posterior-superior.html#.YJfj6C1Q01J [Accessed on 8 May 2021] Sieroslawska, A. (2020) Sphenoid Bone. [online] Ken Hub. Available at: 17 https://www.kenhub.com/en/library/anatomy/the-sphenoid-bone [Accessed on 10 May 2021] Special Thanks I would like to express my extreme thanks and gra9tude to Mar9na Carter, Nilufar Ismatova and Emmanuelle Sitjar, for allowing me to use some of their slides from their presenta9on of the Skull and it’s landmarks May 2021. Many thanks 18