Extrinsic muscles Flashcards
What is the origin of the genioglossus?
Superior mental spines
What is the insertion of the genioglossus?
body of hyoid and entire length of tongue
What is the function of the genioglossus?
Protrudes tongue
Depresses center of tongue
What is the origin of the hyoglossus?
Greater horn and adjacent part of body of hyoid bone
What is the insertion of the Hyoglossus?
Lateral surface of the tongue
What is the function of the hyoglossus?
Depresses tongue
What is the origin of the styloglossus?
The styloid process on the anterolateral surface
What is the insertion of the styloglossus?
Lateral surface of the tongue
What is the function of the styloglossus?
Elevates and retracts tongue
What is the origin of the palatoglossus?
Inferior surface of the palatine aponeurosis
What is the insertion of the palatoglossus?
Lateral margin of the tongue
What is the function of the palatoglossus?
Depresses palate, moves palatoglossal fold towards midline; elevates back of tongue
