Talk to us?
π€ Welcome User
Anatomy - 3 Questions
Tongue is protruded by Genioglossus
Functional movement of grinding requires:1) Bilateral medial pterygoid contraction2) Unilateral lateral pterygoid contraction of contralateral side alternating3) Bilateral temporalis4) Bilateral masseter
Grinding involves lateral excursion of the mandible. The contralateral medial and lateral pterygoid muscles contract while the ipsilateral temporalis helps retract the mandible.
The parasympathetic fibers to pterygopalatine ganglion come from greater petrosal nerve