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Muscles of the tongue Lingual artery and vein Structures in the floor of the mouth Glossopharyngeal nerve Hypoglossal nerve Kritchai Bespinyowong
Muscles of the tongue Extrinsic muscles Intrinsic muscles
Extrinsic muscles of the tongue Genioglossus muscle Hyoglossus muscle Styloglossus muscle Palatoglossus muscle
Superior fibersRetract tip of tongue Middle fibersProtrude tip Inferior fibers of tongue Action Safety muscle
Genioglossus muscle Bilateral actionDepress center of tongue Unilateral actionContralateral protrude of tongue Action
Hyoglossus muscle Styloglossus muscle Palatoglossus muscle
Hyoglossus muscle Action Depress side of tongue Retract tongue
Styloglossus muscle Action Elevate side of tongue Retract tongue
Palatoglossus muscle Action Elevate posterior part of tongue ทำให้ Isthmus of fauces แคบลง
Intrinsic muscles of the tongue Superior longitudinal muscle Inferior longitudinal muscle Transverse muscle Vertical muscle
Intrinsic muscles of the tongue
Nerve supply of muscles of tongue Hypoglosal nerve except palatoglossus muscle that supply by pharyngeal plexus
Lingual vein Venae comitantes Vena comitans nervi hypoglossi
Structures in the floor of the mouth Mylohyoid muscle Geniohyoid muscle Sublingual salivary gland Submandibular duct Submandibular ganglion
Mylohyoid muscle Geniohyoid muscle
Mylohyoid muscle Action Elevate hyoid bone and base of tongue Elevate floor of mouth depress mandible Nerve supply Mylohyoid nerve
Geniohyoid muscle Action Elevate hyoid bone and tongue Nerve supply C1 โดยผ่านมาทาง hypoglossal nerve
Sublingual salivary gland Submandibular duct
“ จบแล้วขอรับ ”
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