CDO 335 Week Six Notes
CDO 335 Week Six Notes CDO 335
Popular in Anatomy & Physiology of Speech and Hearing
Popular in Communication Disorders & Sciences
This 9 page Class Notes was uploaded by Rachel Roede on Friday October 9, 2015. The Class Notes belongs to CDO 335 at Central Michigan University taught by Lori Bissell in Summer 2015. Since its upload, it has received 22 views. For similar materials see Anatomy & Physiology of Speech and Hearing in Communication Disorders & Sciences at Central Michigan University.
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Date Created: 10/09/15
CDO 335 Week Six Notes Maxilla Bones 0 Articulates with Opposite maxilla Frontal bone Ethmoid bone Lacrimal bones Nasalbones Zygomatic bones Palatine bones Inferior nasal concha Vomer bone 0 00000000 Palatine Bones 0 Posterior bony portion of roof of the mouth 0 Posterior oor of nose 0 Landmarks O Serrated Anterior Border I Front of bone attaching to maxilla palatine bones 0 Smooth Posterior Border I Back of bone 0 Posterior Nasal Spine I Reaching into nasal cavity 0 Horizontal Plate I Joined to palatine process of maxilla to complete the hard palate 0 Articulates with O Opposite palatine bone Sphenoid bone Inferior nasal conchae Ethmoid bones Maxilla bones Vomer bone OOOOO Zygomatic Bones 0 Makes up the cheek bones 0 Landmarks 0 Temporal Process I Articulates with temporal bone 0 Maxillary Process I Articulates with maxilla bones 0 Frontal Process I Articulates with frontal bone 0 lnfraorbital Margin I Below eye socket 0 Articulates with 0 Temporal bones 0 Maxia bones O Sphenoid bone 0 Frontal bone Lacrimal Bones 0 Smallest facial bones 0 Forms part of orbit medial wall 0 Articulates with 0 Frontal bone 0 Maxia bones 0 Ethmoid bone 0 Inferior nasal concha NasalBones 0 Forms the bridge of the nose 0 Articulates with O Opposite nasal bone 0 Ethmoid perpendicular plate 0 Frontal bone 0 Maxia bones Inferior Conchae 0 Forms inferior lateral nasal walls Creates inferior nasal meatus passageway air lled Landmarks o Puffed up air lled appearance 0 Scroll like Articulates with o Maxilla bones o Palatine bones o Lacrimal bones o Ethmoid bone Vomer Bone Unpaired midline bone making up the inferior and posterior nasal septum Landmarks o Plow shaped Articulates with o Sphenoid bone 0 Ethmoid bone 0 Maxilla bones o Palatine bones Muscles of Articulation and Mastication Muscles of Articulation Controlling the lips o Protrusionretraction o Openingclosing Lower face and neck Insertattach in or near the lips Exhibit functional unity muscles doing the same thing Directionallv o Transvers right to leftacross o Angular diagonally 0 Parallel run next to each other Orbicular Oris Primary attaching muscle Oral sphincter open and close 0 To keep food in mouth when eating Innervation 0 VII Facial Nerve 0 Function 0 Closes mouth 0 Compress lips pushing lips together 0 Protrudepucker lips Buccinators Cheek muscles Transvers Deep 0 Lateral walls of buccal cavity cheek cavity 0 Innervation 0 VII Facial Nerve 0 Function 0 Retract lips attach to corner of mouth smiling o Compress lips Risorius 0 Transvers Smiling muscle Innervation O VII Facial Nerve 0 Function 0 Retract lips at corner of mouth Levator Labii Superioris 0 Angular 0 Innervation O VII Facial Nerve 0 Function 0 Elevates upper lip only 0 runs from fright unoler eye socket to upper lip Levator Labii Superioris Alaeque Nasi 0 Runs right alongside nose 0 Longest name of any human muscle 0 Innervation O VII Facial Nerve 0 Function 0 Elevates upper lip O quotsneerquot of Elvis Zygomatic Major 0 Angular o Innervation 0 VII Facial Nerve 0 Function 0 Elevates and retracts the corners of the mouth Zygomatic Minor 0 Runs parallel to zygomatic major o Innervation 0 VII Facial Nerve 0 Function 0 Elevates upper lip not at corner like zygomatic major Depressor Labii lnferioris Angular Very thick muscle Innervation 0 VII Facial Nerve FuncUon o Depresseslowers bottom lip o Retract lower lip pull back Depressor Anguli Oris Verticalangular o Innervation 0 VII Facial Nerve 0 Function 0 Depress corner of mouth frowning muscle 0 Compress the lips Mentalis Angularvertical o Innervation 0 VII Facial Nerve Function 0 Raises lower lip only 0 Evertsprotrudes lower lip pouting muscle 0 Wrinkles chin Levator Anguli Oris Vertical 0 Innervation 0 VII Facial Nerve 0 Function 0 Elevates corner of mouth 0 Compresses the lips Platysma 0 Sheetlike covers anterior neck 0 Innervation 0 VII Facial Nerve 0 Function 0 Draw angle of mouth down and laterally o Depresses the mandible Muscles of Mastication Controlling the jaw mastication Among the strongest muscles of the body 0 Attaches to mandible bone 0 Important for preparing food to swallow Rotation motion of the mandible 0 Depression 0 Elevation 0 Lateralization Masseter Most super cial muscle of mastication 2 portions 0 Innervation o Vtrigeminal Function 0 Elevates the mandible Temporalis Deep to masseter o Innervation 0 V Trigeminal Function 0 Elevates the mandible o Clenches the teeth 0 Closes jaw Lateral external Pterygoid Muscle has two heads Attached to sphenoid pterygoid process Innervation o VTrigeminal FuncUon o Protrudes mandible pushes outward o Helps with elevation for grinding molars when chewing o Lateralization of mandible Medial Internal Pterygoid o Innervation 0 V Trigeminal Function 0 Elevates mandible o Protrudes mandible Dentition 0 Mandibular arch lower arch 0 Maxillary arch upper arch Types of Teeth Incisors o Slicing cutting Canines cuspids eye teeth 0 Tearing ripping Premolarsbicuspids o Grinding Molars o Grinding Number of teeth Child Deciduous 0 Baby teeth 0 Milkteeth 20 10 on each arch o 4 incisors 2 central incisors 2 lateral incisors o 2 canines cuspids o 4 molars First in by 9 months incisors Last out by 12 years molars Number of teeth Adult 0 Permanent 0 32 16 on each arch o 4 incisors 2 central 2 lateral o 2 Canines o 4 premolars o 6 molars First in by 8 years incisors Last in by 1825 years wisdom Surface Medial o Toward the midline of the arch o Distal o Toward the endpoint of the arch Buccal o Touchestoward the cheek Labial o Toward the lip Lingual o Toward the tongue Importance for Articulation o lncisors are the most important 0 Split the airstream on many fricatives quotsoundquot 0 Add stridency high frequency Needed for o Alveolar fricatives 39s 39z o Labiodental fricatives 39f 39v o Linquadental fricatives 39th Entire upper arch may be contacted for different sounds