muscles of the tongue lingual artery and vein structures in the floor of the mouth glossopharyngeal...
TRANSCRIPT
Muscles of the tongueLingual artery and veinStructures in the floor of the mouthGlossopharyngeal nerveHypoglossal nerve
Kritchai Bespinyowong
Muscles of the tongue
Extrinsic muscles
Intrinsic muscles
Extrinsic muscles of the tongue
Genioglossus muscle
Hyoglossus muscle
Styloglossus muscle
Palatoglossus muscle
Genioglossus muscle
Genioglossus muscle
Genioglossus muscle
Superior fibers Retract tip of tongue
Middle fibers Protrude tip Inferior fibers of tongue
Action
Safety muscle
Genioglossus muscle
Bilateral action Depress center of tongue
Unilateral action Contralateral protrude of tongue
Action
Hyoglossus muscleStyloglossus musclePalatoglossus 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
• ทำ��ให้� Isthmus of fauces แคบลง
Intrinsic muscles of the tongue
Superior longitudinal muscle
Inferior longitudinal muscle
Transverse muscle
Vertical muscle
Intrinsic muscles of the tongue
Intrinsic muscles of the tongue
Nerve supply of muscles of tongue
Hypoglosal nerve
except palatoglossus muscle that supp ly by pharyngeal plexus
Lingual artery
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
1C โดยผ่��นม�ทำ�ง hypoglossal nerve
Sublingual salivary gland Submandibular duct
Submandibular ganglion
Glossopharyngeal nerve
Hypoglossal nerve
“ จบแล้�วขอรับ ”