PCSD 313 Anatomy Exam 3 Exam with
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Tongue: Genioglossus - CORRECT ANSWER-Origin: Mandible (mental spines)
Insert: Tongue dorsum & hyoid
Function: Posterior fibers protrude tongue Anterior fibers retract tongue All fibers
depress tongue
Bulk of tongue
Tongue: Styloglossus - CORRECT ANSWER-Origin: Styloid process
Insert: Lateral tongue dorsum
Function: Pulls tongue up & back, shapes it into a trough
Tongue: Hyoglossus - CORRECT ANSWER-Origin: Hyoid bone
Insert: Posterior lateral tongue
Function: Retracts & depresses tongue
Tongue: Palatoglossus - CORRECT ANSWER-Origin: Palatal aponeurosis
Insert: Lateral tongue
Function: Elevates posterior tongue / Lowers soft palate
Intrinsic muscles (Shape + Fine Control) - CORRECT ANSWER-Superior
Longitudinal - Shortens tongue, curls tip up
Inferior Longitudinal - Shortens tongue, pulls tip down
Transverse - Narrows & elongates tongue
Vertical - Flattens tongue
Palate: Tensor Veli Palatini - CORRECT ANSWER-Tenses soft palate, opens
Eustachian tube
Palate: Levator veli palatini - CORRECT ANSWER-Bulk of the velum. Pulls soft
palate posteriorly & superiorly towards the pharyngeal wall [to close the soft
palate].
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