The Skull and its Landmarks Part B 1 PDF

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 is to 1.1.5 cover the Facial Skeleton and try to =e in other lectures you will 9...

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 is to 1.1.5 cover the Facial Skeleton and try to =e in other lectures you will 9.1 have/had on the Mandible, 9.2 Muscles of Mas=ca=on and Facial Expression To give you an understanding of the features of the skull, and how they can impact us as clinicians 2  The Skull is made of 2 secAons Neurocranium – These are the Viscerocranium – These are the Cranial Bones 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 Pala=ne Bones & The Orbit Bones Label various diagrams of the skull Describe the loca=on & anatomical features of the 3 Intracranial Fossae Discuss the Hyoid bone 4 The Viscerocranium – Facial Skeleton FuncAon of the Facial Skeleton Protects the brain Houses and protects the sense organs of smell, sight and taste Provides a frame on which the soU =ssues of the face can act to facilitate ea=ng, 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 Pala=ne Bones x 2 Conchae x 2 (Turbinate Zygoma=c Bones x 2 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 Ar=culate 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. Ar=culate with: Ethmoid Maxilla Lacrimal Pala=ne bone 10  Vomer Bone A thin, singular bone that runs ver=cally within the nasal cavity Separates the nasal cavi=es into leU and right sides Ar=culates with: Maxilla Ethmoid Sphenoid bones Pala=ne 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. Ar=culate with: Frontal Ethmoid Maxilla Inferior nasal concha. 12 Maxilla Bones Located at the front sec=on of the face Forms the upper jaw which hold the teeth, sides of the nasal cavity and sec=ons of the eye socket Ar=culates with: Zygoma=c Frontal Pala=ne 13 ZygomaAc Bones Form the cheek bones and are diamond shaped. Important contributors to mas=ca=on, providing an a\achment point for the masseter muscle Ar=culates 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. Ar=culates with: Temporal bone to form the temporomandibular joint (TMJ) 15  Situated at the back of the nasal cavity PalaAne Bones Helps form the nasal cavity, eye socket, and hard palate. Ar=culates with six bones: Sphenoid Ethmoid Maxilla Inferior nasal concha Vomer Opposite Pala=ne. 16  Two important foramina that transmit nerves and blood vessels: The greater and lesser pala=ne. Each pala=ne bone forms an L- shape, which consists of a horizontal plate and a perpendicular plate. 17  Small Torus Middle Size Torus PalaAnus Large Size Huge! Exdon=a.info 18 Sciencedirect You Tube Clip for PalaAne Bones https://www.youtube.com/watch?v=eZMdVEJFa4g 19  Time For A Break! 20 Economic =mes.com