DOC PREVIEW
UI CSD 3112 - Articulatory System: Cranium, Joints, Cavities

This preview shows page 1 out of 4 pages.

Save
View full document
View full document
Premium Document
Do you want full access? Go Premium and unlock all 4 pages.
Access to all documents
Download any document
Ad free experience
Premium Document
Do you want full access? Go Premium and unlock all 4 pages.
Access to all documents
Download any document
Ad free experience

Unformatted text preview:

Cranium—Ethmoidalthough regarded as cranial bone, contributes to facial skeletonprojects down between orbital plates of frontal bonecontributes towalls of orbitlateral walls of nasal cavitybony nasal septumCranium—Frontal Boneforms anterior part of brain casevertical plate contributes toforeheadhorizontal plate contributes toroof of orbit and nasal cavitiesCranium—Parietal Bonesform most of rounded roof of craniumarticulate with frontal bone at coronal suturejoined together in midline at sagittal suturearticulate with occipital bone at lambdoid sutureCranium—Occipital boneinferior and posterior portion of craniumincludes foramen magnumoccipital condyles, lateral to foramen magnum, articulate with superior facets of C1Cranium—Temporal Bonespaired bones forming most of lateral base and sides of brain caseeach bone has 3 portionssquamous portionpetrous portiontympanic portionCranium—Sphenoidlocated at base of skull, behind ethmoid, and in front of foramen magnumconsists ofbodylesser wingsgreater wingspterygoid platesBodyforms posterior wall of nasal cavityLesser Wingscontribute to anterior cranial fossa and superior wall of orbitGreater Wingscontribute to middle cranial fossa and posterior 1⁄2 of lateral wall of orbitPterygoid Processesmedial and lateralfor attachment of pterygoid musclesJoints—Temporomandibularonly skeletal joint in articulatory systemcondylar process of mandible and mandibular fossa of temporal bone (squamous portion)Cavities of the Vocal TractBuccalhighly variablespace between lips and cheek externally & alveolar processes & teeth internallyOralbounded anteriorly & laterally by alveolar processes & teethsuperiorly by hard and soft palateinferiorly by muscular floor of mouthposteriorly by anterior faucial pillarsCavities of the Vocal TractNasaldivided sagitally by nasal septumbounded anteriorly by naresinferiorly by hard and soft palateposteriorly by nasopharyngeal wallPharyngealfrom base of skull to bottom of cricoiddivided into nasopharynx, oropharynx, laryngopharynxCSD 3112 1st Edition Lecture 27Outline of Last Lecture I. Articulatory System Anatomya. Bones of the SkullII. Facial Skeletona. Mandibleb. Maxillac. Nasal Bonesd. Lacrimal Bonese. Palatine Bonesf. Zygomatic Bonesg. Inferior Nasal Conchah. VomerOutline of Current Lecture III. Articulatory System Anatomya. Bones of the SkullIV. Craniuma. Ethmoidb. Frontal bonec. Parietal bonesd. Occipital bonee. Temporal bonesf. SphenoidV. Joints—temporomandibularVI. Cavities of the Vocal Tracta. Buccalb. Oralc. Nasald. PharyngealCurrent Lecture These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute. Cranium—Ethmoid - although regarded as cranial bone, contributes to facial skeleton- projects down between orbital plates of frontal bone- contributes too walls of orbito lateral walls of nasal cavity o bony nasal septum Cranium—Frontal Bone- forms anterior part of brain case - vertical plate contributes too forehead- horizontal plate contributes too roof of orbit and nasal cavities Cranium—Parietal Bones- form most of rounded roof of cranium- articulate with frontal bone at coronal suture- joined together in midline at sagittal suture- articulate with occipital bone at lambdoid suture Cranium—Occipital bone- inferior and posterior portion of cranium- includes foramen magnum- occipital condyles, lateral to foramen magnum, articulate with superior facets of C1 Cranium—Temporal Bones- paired bones forming most of lateral base and sides of brain case- each bone has 3 portions o squamous portiono petrous portiono tympanic portion Cranium—Sphenoid- located at base of skull, behind ethmoid, and in front of foramen magnum- consists of o body- lesser wings- greater wings- pterygoid plates- Bodyo forms posterior wall of nasal cavity- Lesser Wingso contribute to anterior cranial fossa and superior wall of orbit- Greater Wingso contribute to middle cranial fossa and posterior 1⁄2 of lateral wall of orbit- Pterygoid Processeso medial and lateralo for attachment of pterygoid muscles Joints—Temporomandibular- only skeletal joint in articulatory system- condylar process of mandible and mandibular fossa of temporal bone (squamous portion) Cavities of the Vocal Tract- Buccalo highly variableo space between lips and cheek externally & alveolar processes & teeth internally- Oralo bounded anteriorly & laterally by alveolar processes & teetho superiorly by hard and soft palateo inferiorly by muscular floor of moutho posteriorly by anterior faucial pillars Cavities of the Vocal Tract- Nasalo divided sagitally by nasal septumo bounded anteriorly by nareso inferiorly by hard and soft palateo posteriorly by nasopharyngeal wall- Pharyngealo from base of skull to bottom of cricoido divided into nasopharynx, oropharynx,


View Full Document

UI CSD 3112 - Articulatory System: Cranium, Joints, Cavities

Documents in this Course
Load more
Download Articulatory System: Cranium, Joints, Cavities
Our administrator received your request to download this document. We will send you the file to your email shortly.
Loading Unlocking...
Login

Join to view Articulatory System: Cranium, Joints, Cavities and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Articulatory System: Cranium, Joints, Cavities 2 2 and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?