Cranial Nerves Trigeminal only: Head and Neck Innervation

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The parotid branches are innervated by parasympathetic fibers from the _____ nerve via the ___ ____ nerve, ___ ganglion, and _____ nerve.

glossopharyngeal; lesser petrosal; otic; auriculotemporal

The pterygopalatine ganglion receives parasympathetic fibers via the ____ ____ nerve from the ____ nerve.

great petrosal; facial

The ____ _____ nerve enters the mandibular foramen, runs anteriorly in the body of the mandible and emerges through the mental foramen as the ___ nerve.

inferior alveolar; mental

The ____ nerve exits through the infraorbital foramen.

infraorbital

The zygomatic nerve carries a communicating branch to the _____ nerve.

lacrimal

What structure does the pterygopalatine ganglion branches supply?

lacrimal gland

What nerve supplies parasympathetic innervation to the lacrimal gland?

lacrimal nerve

What nerve supplies sensory innervation to the upper eyelid?

lacrimal nerve

The lacrimal nerve runs anteriorly along the ___ wall of the orbit.

lateral

What is responsible for sensory innervation to the auricle, temporomandibular joint and anterior temporal region?

Auriculotemporal nerve

What structures does the lingual nerve of the trigeminal supply?

submandibular gland sublingual gland taste to the anterior 2/3 of the tongue

The ___ nerve exits through the supraorbital foramen.

supraorbital

The __ nerve is medial to the supraorbital nerve.

supratrochlear

The ___ nerve is the principal somatic ____ nerve of the head (face, teeth, mouth, nasal cavity, and dura mater of cranial cavity).

trigeminal; sensory

CN V or the ____ nerve is ____ _____ and ____ _____.

trigeminal; somatic sensory; somatic motor

What are the branches of the nasociliary nerve?

1. Anterior ethmoidal 2. Posterior ethmoidal 3. Infratrochlear 4. Long ciliary 5. Sensory root of ciliary ganglion

What are the branches of the Ophthalmic nerve?

1. Lacrimal 2. Frontal 3. Nasocilliary

What are the divisions or branches of the trigeminal nerve?

1. Ophthalmic 2. Maxillary 3. Mandibular

What are the branches of the frontal nerve?

1. Supraorbital 2. Supratrochlear

What are the major branches of the maxillary nerve?

1. Zygomatic 2. Infraorbital 3. Nasal branches 4. Pterygopalatine

What does the frontal nerve supply?

1. forehead 2. anterior scalp 3. upper eyelid

What are the nasal branches of the trigeminal?

1. posterior superior and inferior lateral nasal 2. Nasopalatine

What does the infraorbital nerve innervate?

1. upper teeth 2. lower eyelid 3. upper lip 4. part of nasal vestibule

What is innervated by the motor branches of the mandibular branch?

All muscles of mastication: temporalis, masseter, medial pterygoid, lateral pterygoid

What innervates the premolar, canine, and incisive teeth and associated gums?

Anterior and middle superior alveolar

Where are the pterygopalatine ganglion branches?

Located inferior to the maxillary nerve in the pterygopalatine fossa

The parasympathetic fibers of the short ciliary nerves of the oculomotor nerve supplies the sphincter pupillae which constricts the pupil. What nerve contains sympathetic fibers to the dilator pupillae to dilate the pupil?

Long ciliary nerve

What supplies innervation to the iris and cornea?

Long ciliary nerve

What nerve supplies the mandibular teeth, skin of the chin and skin and mucosa of the lower lip?

Inferior alveolar

What supplies innervation to the skin of the eyelids, side of the nose, conjunctiva and the lacrimal sac?

Infratrochlear nerve

What innervates the mylohyoid and the anterior belly of the digastric?

Mylohyoid nerve

What innervates the molar teeth and the associated gum area?

Posterior superior alveolar nerve

True or False: The trochlear nerve, oculomotor nerve, abducent nerve and ophthalmic nerve all run anteriorly in the lateral wall of the cavernous sinus and enter the orbit through the superior orbital fissure.

TRUE.

What nerve and muscle is responsible for tensing the soft palate?

Tensor veli palatini

What nerve and muscle is responsible for dampening sound in the tympanic cavity?

Tensory tympani

What does the nasal branch supply?

The walls and septum of the nasal cavity

The ___ and ____ ____ nerves supply the ethmoid and sphenoid air sinuses and part of the nasal cavity.

anterior; posterior ethmoidal

The ____ nerve innervates the skin over the buccinator muscle and internal mucosa membrane.

buccal

The maxillary nerve goes through the lateral wall of the ___ ____ and exits the cranium through the ____ ____ then travels in the _____ ____.

cavernous sinus; foramen rotundum; pterygopalatine fossa.

The ophthalmic nerve runs anteriorly in the lateral wall of the ____ ____ and enters the ____ through the ____ ____ _____.

cavernous sinus; orbit; superior orbital fissure.

The frontal nerve runs anteriorly in the ____ of the orbit.

center

The nasociliary nerve runs anteriorly along the ___ wall of the orbit.

medial

The submandibular ganglion branches contain visceral fibers from the ____ nerve via ___ ____ nerve to join the lingual nerve posteriorly to reach the submandibular gland.

facial; chorda tympani

The mandibular nerve exits the cranium via ___ ____.

foramen ovale

While the lingual nerve of the glossopharyngeal nerve supplies special sensory (taste) to the posterior 1/3 of the tongue, the ___ nerve of the ____ branch of the ___ nerve supplies sensation to the anterior 2/3 of the tongue.

lingual; mandibular; trigeminal

The motor root of the trigeminal is distributed exclusively via the ____ division.

mandibular

The greater and lesser palatine nerves enter the ____ ___ and supply the ___ ___, ____ and the ____ ____.

nasal cavity; palate mucosa; glands; nasal cavity.

Parasympathetic fibers for innervation of the lacrimal gland are from the _____ ganglion via the ____ nerve of the maxillary branch of the trigeminal.

pterygopalatine; zygomatic

The maxillary nerve of the trigeminal is ____ innervation only.

sensory

The ophthalmic division is _____ only.

sensory

The sensory root of ciliary ganglion are ___ fibers from the eyeball which pass through the ___ ____ and join the nasociliary nerve.

sensory; ciliary ganglion

The mandibular branch of the trigeminal contains _____ and _____ innervation.

sensory; motor

The ___ nerve innervates the skin of the cheeks.

zygomaticofacial

The ____ nerve innervates the skin over the side of the forehead.

zygomaticotemporal


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