Created on April 16, 2024
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Terms in this set (27)
Which nerves provide somatosensory to the face
Trigeminal nerve (V)
Opthalmic Division
Maxillary Division
Mandibular Division
Opthalmic Division
Maxillary Division
Mandibular Division
What are the muscles of mastication? and what nerve innervates this arch
Temporalis
Masseter
Lateral Pterygoid
Medial Pterygoid
innervated by Mandibular Divion (V3 - of the Trigeminal Nerve)
Masseter
Lateral Pterygoid
Medial Pterygoid
innervated by Mandibular Divion (V3 - of the Trigeminal Nerve)
What are the actions of the Temporalis m on the mandible
To elevate and retrude mandible
What does it mean to retrude a muscle
pull it posteriorly
What does it mean to protrude a muscle
pull it anteriorly
What are the actions of the masseter m on the mandible
elevates and protrudes muscles
What are the actions of the lateral pterygoid and medial m
Bilateral: both protrudes it and only medial elevates mandible
Unilateral both move mandible side to side
Unilateral both move mandible side to side
What are the arch II derived muscles
Frontalis
Occipitalis
Orbicularis Oculi
Orbicularis Oris
Zygomaticus
Buccinator
Platysma
innervated by the facial nerve VII
Occipitalis
Orbicularis Oculi
Orbicularis Oris
Zygomaticus
Buccinator
Platysma
innervated by the facial nerve VII
where does the facial nerve fully exist the brain
stylomastoid foramen
What are the visceromotor innervations for the facial nerve and is is sympa or para
parasympathetic (rest and digest)
Submandibular
sublingual
Lacrimal ---- Glands
Submandibular
sublingual
Lacrimal ---- Glands
Describe the tongue muscles and what innervates them and where are they derived from
Hypoglossal n through somatomotor innervation
Extrinsic and intrinsic tongue muscles that are somite derived and voluntary and skeletal.
Extrinsic and intrinsic tongue muscles that are somite derived and voluntary and skeletal.
Extrinsic tongue muscles include
styloglossus, genioglossus, and hyoglossus muscles
What are the actions for the styloglossus tongue muscle
Elevates and retrode(pulls posteriorly) the tongue
What are the actions for the hyoglossus tongue muscle
Depresses tongue and pulls it posteriorly (retordes)
What are the actions for the genioglossus m
depress and protrodes