Podcast
Questions and Answers
What is the function of the superficial muscles of facial expression?
What is the function of the superficial muscles of facial expression?
To open, close or move lips, eyelids, nose and ear.
We make FACIAL expressions when we make Large Black POOPZ. What are 7 facial muscles?
We make FACIAL expressions when we make Large Black POOPZ. What are 7 facial muscles?
Levator nasolabialis, Buccinator, Platysma, Orbicularis Oculi, Orbicularis oris, Parotidauricularis, and Zygomaticus
Match the correct functions to the muscle that carries out the action
Match the correct functions to the muscle that carries out the action
Buccinator = Moves food from buccal vestibule to oral cavity Orbicularis oris = From corners of mouth to rostral midline. Closes lips Parotidoauricularis = In danger during ear ablation surgery Levator nasolabialis = Raises upper lip and dilates lateral naris
This muscle is the most superficial muscle keeps the cheeks taut, and anchors/aids pulling back corner of mouth.
This muscle is the most superficial muscle keeps the cheeks taut, and anchors/aids pulling back corner of mouth.
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The zygomaticus m. closes the lips.
The zygomaticus m. closes the lips.
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What are the 3 principle structures at risk during an ear ablation?
What are the 3 principle structures at risk during an ear ablation?
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What nerve provides motor innervation to all muscles of facial expression?
What nerve provides motor innervation to all muscles of facial expression?
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The most common cause of facial paralysis is due to otitis media.
The most common cause of facial paralysis is due to otitis media.
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What structure is found running on the surface of the masseter muscle between buccal branches of CNII?
What structure is found running on the surface of the masseter muscle between buccal branches of CNII?
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What are the four muscles of mastication?
What are the four muscles of mastication?
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All of the muscles of mastication receive motor innervation from the ______ nerve of the ____ nerve.
All of the muscles of mastication receive motor innervation from the ______ nerve of the ____ nerve.
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Which of the muscles of mastication runs from the paracondylar process of the skull to ventral borders of the mandible?
Which of the muscles of mastication runs from the paracondylar process of the skull to ventral borders of the mandible?
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Which division of the trigeminal nerve is responsible solely for sensory innervation?
Which division of the trigeminal nerve is responsible solely for sensory innervation?
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What is the primary function of the mandibular division of the trigeminal nerve?
What is the primary function of the mandibular division of the trigeminal nerve?
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Through which anatomical structure does the maxillary nerve primarily exit the skull?
Through which anatomical structure does the maxillary nerve primarily exit the skull?
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Which of the following nerves is NOT a division of the trigeminal nerve?
Which of the following nerves is NOT a division of the trigeminal nerve?
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Which specific foramen allows the mandibular nerve to exit the skull?
Which specific foramen allows the mandibular nerve to exit the skull?
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Ophthalmic nerve is 100% sensory and enters skull at orbital fissure
Ophthalmic nerve is 100% sensory and enters skull at orbital fissure
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What foramen does the facial nerve exit the skull?
What foramen does the facial nerve exit the skull?
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What is the one sensory branch of the facial nerve we are responsible for knowing?
What is the one sensory branch of the facial nerve we are responsible for knowing?
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What are the four branches of the mandibular nerve?
What are the four branches of the mandibular nerve?
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How many branches does the Trigeminal nerve have?
How many branches does the Trigeminal nerve have?
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What are the branches of the trigeminal nerve?
What are the branches of the trigeminal nerve?
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The trigeminal nerve comes out of three different holes/foramen
The trigeminal nerve comes out of three different holes/foramen
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the ophthalmic nerve is _______, supplying the skin over the _______ and __________ of eye
the ophthalmic nerve is _______, supplying the skin over the _______ and __________ of eye
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The maxillary nerve is _______, and it supplies the skin over the _______ and __________
The maxillary nerve is _______, and it supplies the skin over the _______ and __________
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The (…) provides motor innervation to the orbicularis oculi, frontal is, elevator nasolabialis and zygomaticus
The (…) provides motor innervation to the orbicularis oculi, frontal is, elevator nasolabialis and zygomaticus
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Study Notes
Trigeminal Nerve Function
- Motor innervation to muscles of mastication and mylohyoideus via the mandibular division
- Sensory innervation to the face via all three divisions: ophthalmic, maxillary, and mandibular
Trigeminal Nerve Divisions
-
Ophthalmic nerve (100% sensory):
- Exits the skull through the orbital fissure
-
Maxillary nerve (100% sensory):
- Exits the rostral alar foramen and then the round foramen
- Travels through the infraorbital groove
-
Mandibular nerve (mixed sensory and motor):
- Exits the oval foramen
- Contains both sensory (lingual) and motor branches
- Sensory branches exit the inferior alveolar foramen
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Description
Facial muscles, innervation ablation surgery
