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36 Cards in this Set
- Front
- Back
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Functions of the lips in speech |
Bilabial closure Labiodental articulation Mouth rounding Lip protrusion |
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Orbicularis Oris |
-around the lip -pulls lips together and effects labial seal |
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Levator anguli oris |
Draws the corners of the mouth up |
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Risorius |
Retracts lips at corners “Smile muscle” |
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Depressor labi inferioris |
Pulls lips down and out |
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Depressor anguli oris |
-continuous with labii oris Depresses corners of the mouth -Compresses upper lip against lower lip |
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Mentalis |
- triangular muscle -origin at incisive foremen of mandible -Insertion is lower lip -function is to wrinkle chin or elevate lower lip |
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Minor elevators of upper lip |
Levator labii superioris Levator labii superioris alaeque nasi Zygomatic minor |
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Levator labii superioris |
Elevates upper lip |
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Levator labii superioris alaeque nasi |
DILATES NOSTRILS elevates upper lip |
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Zygomatic minor |
Elevates upper lip Located more medially Upper portion of upper lip, terminates at zygomatic bone next to zygomatic major |
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Zygomatic major |
Attaches to zygomatic bone and connected to corner of upper lip |
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Buccinator |
Important for chewing Innervated by CN 5 and CN 7 |
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Depressor labii inferioris |
-Deeper and medial to depressor anguli oris -inserts at medial to lateral portion of lower lip -function is to pull lower lip down and to the side |
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Extrinsic muscles of the tongue function |
Change position and general gross movements |
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Intrinsic muscles of the tongue function |
Change shape and fine tongue motions for articulation |
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Palatoglossus |
Extrinsic From palatine area to tongue |
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Styloglossus |
Extrinsic Styloid process of temporal bone to root of tongue 2 portions: one works with inferior longitudinal muscle and one works with hyoglossus |
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Genioglossus |
Extrinsic Prime mover of tongue Covers largest part of lower tongue Mental spine to bottom of tongue and hyoid bone |
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Hyoglossus |
Extrinsic Between styloglossus and inferior longitudinal muscle Pulls sides of tongue down Direct antagonist of palatoglossus Greater cornu of hyoid bone to back of tongue |
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Palatoglossus |
Considered tongue and velum muscle Also called anterior faucil pillar Palatine area (close to soft and hard palate) to side portion of velum and tongue area |
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Chrondroglossus |
May be considered part of hyoglossus Tongue depressor |
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Superior longitudinal muscle |
Intrinsic muscle of tongue Compresses upper tongue layer Elevates tongue tip |
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Inferior longitudinal muscle |
Intrinsic Absent in medial tongue base Pulls tip and sides down Works with superior longitudinal muscle |
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Platysma |
-long, superficial muscle in facial and neck area -pulls corner of the mouth down and to the side -May partially open the mouth |
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Transverse muscle |
Intrinsic Works to narrow tongue From edges of tongue to midline |
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Vertical muscle |
Intrinsic Flattens tongue Works with transverse muscle Pulls tongue down |
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Pharynx |
Muscular tube from base of skull to larynx Formed by three pharyngeal constrictor muscles called superior, middle, and inferior constrictors |
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Oral cavity |
Bounded anteriorly by teeth and inferiorly by floor of mouth |
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Part of tongue |
Tip Blade Dorsum Root |
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Palatine tonsils |
Between anterior and posterior fausil pillars |
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Sulcus terminalis |
-small hole, recess or like -also called foramen cacum |
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Papillae |
Anterior/ back portion of the tongue |
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Central (longitudinal) sulcus |
Medial surface of tongue |
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Lingual frenulum |
-Connects to bottom and tongue root -needs to be cut if it is connected to the tip because tongue movement would be restricted |
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Tongue innervation |
CN 12- hypoglossus, mainly for movement CN 5- trigeminal, sensation for anterior 2/3 of tongue CN7-facial, taste and motor skills for anterior 2/3 of tongue CN 9- glossopharyngeal, taste and sensation for posterior 1/3 of tongue |
