The Skull its landmarks DTH23 Part B 1 of 4.pptx

The Skull and its Landmarks Part B Part 1 of 4 Julie Watson  GDC Learning Outcomes 1.1 Overall Aim 1.1.1 The aim of todays session 1.1.5 is to cover the Facial Skeleton and try to tie in 9.1 other lectures you will...

The Skull and its Landmarks Part B Part 1 of 4 Julie Watson  GDC Learning Outcomes 1.1 Overall Aim 1.1.1 The aim of todays session 1.1.5 is to cover the Facial Skeleton and try to tie in 9.1 other lectures you will 9.2 have/had on the Mandible, Muscles of Mastication and Facial Expression To give you an understanding of the 2 features of the skull, and  The Skull is made of 2 sections Neurocranium – These Viscerocranium – These are the Cranial Bones are the Facial Bones To Re-Cap 3 En.wikipedia.org Courses.lumenlearning.com Learning Outcomes By the end of the next sessions, Parts 1-4 you should be able to: Name the 14 bones of the Facial Skeleton Describe in detail the Palatine Bones & The Orbit Bones Label various diagrams of the skull Describe the location & anatomical features of the 3 Intracranial Fossae 4 Discuss the Hyoid bone The Viscerocranium – Facial Skeleton Function of the Facial Skeleton Protects the brain Houses and protects the sense organs of smell, sight and taste Provides a frame on which the soft tissues of the face can act to facilitate eating, facial expression, breathing and speech The form of you face is largely due to your facial skeleton 6 There are 14 Facial Bones Vomer x 1 Palatine Bones x 2 Conchae x 2 Zygomatic Bones x 2 (Turbinate Bones) Lacrimal Bones x 2 Nasal Bones x 2 Maxilla x 2 Mandible x1 Vomer can not make my pet zebra laugh 7  8 Webcampu.med.drexel.edu Nasal Bones 2 x slender oblong bones Vary in size from person to person and form the bridge of the nose Articulate with: Other nasal bone Frontal bone Maxilla Ethmoid 9 Inferior Nasal Concha Located within the nasal cavity They increase the amount of inspired air that comes into contact with cavity walls, by increasing surface area. Articulate with: Ethmoid Maxilla Lacrimal 10  Vomer Bone A thin, singular bone that runs vertically within the nasal cavity Separates the nasal cavities into left and right sides Articulates with: Maxilla Ethmoid Sphenoid bones Palatine 11 Lacrimal Bones Smallest bones of the face Forms part of the medial wall of the orbit and provides support for the eyes Involved in crying. It is part of the tear duct, where tears drain from the eye. Articulate with: Frontal Ethmoid Maxilla 12 Inferior nasal concha. Maxilla Bones Located at the front section of the face Forms the upper jaw which hold the teeth, sides of the nasal cavity and sections of the eye socket Articulates with: Zygomatic Frontal Palatine 13 Zygomatic Bones Form the cheek bones and are diamond shaped. Important contributors to mastication, providing an attachment point for the masseter muscle Articulates with: Sphenoid bone Maxilla Frontal bone Temporal bone 14 Mandible Bone Forms the lower part of the jaw, and houses the lower set of teeth. Largest bone in the human skull and composed of mandible body and ramus. Articulates with: Temporal bone to form the temporomandibular joint (TMJ) 15 Palatine Bones Situated at the back of the nasal cavity Helps form the nasal cavity, eye socket, and hard palate. Articulates with six bones: Sphenoid Ethmoid Maxilla Inferior nasal concha Vomer Opposite Palatine. 16  Two important foramina that transmit nerves and blood vessels: The greater and lesser palatine. Each palatine bone forms an L-shape, which consists of a horizontal plate and a perpendicular plate. 17  Small Torus Middle Size Torus Palatinus Large Size Huge! Exdontia.info 18 Sciencedirect You Tube Clip for Palatine Bones https://www.youtube.com/watch?v=eZMdVEJFa4g 19  Time For A Break! 20 Economic times.com