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Dr. P here talking about the mandibular division

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or third division of the trigeminal nerve,

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the one that's affected intermediately.

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In other words,

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not the most, that's the maxillary division,

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and not the least, that's the ophthalmic division.

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But somewhere in between is it affected

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in trigeminal neuralgia or ticuloroo.

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It has an up and down orientation as we see right here.

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And it exits the brain via the foramen ovale, which may also

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have running through it some branches

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of the middle meningeal artery.

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What else comes off the mandibular division of the fifth nerve?

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Well, you've got the Auriculotemporal nerve,

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you've got a couple of ganglia.

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One I don't have drawn in here, the Otic ganglion.

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I'm not going to try and position.

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I'll just put it in here for effect.

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You've got another ganglion down here.

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The submandibular ganglion,

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which we described in its own vignette.

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You've got the deep temporal nerve,

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the lateral and middle pterygoid nerves.

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And then you've got the chorda tympani,

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which is a branch of the 7th nerve.

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And it travels with its traveling partner,

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the lingual nerve.

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So here's the lingual nerve labeled

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lingual nerve right behind it.

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That small little nerve which is a division of seven, right?

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There it is coming down,

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came from seven and blended in with the lingual nerve

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traveling as its buddy or partner

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is the chorda tympani nerve.

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The chorda tympani nerve is going to settle

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right at the submandibular ganglion.

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There are also some lingual branches of the mandibular nerve.

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An important branch of the third division of the

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trigeminal nerve is the inferior alveolar nerve.

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And when we get into head and neck discussions, we'll spend a

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lot of time talking about the course and location,

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especially as it relates to dentistry for the inferior alveolar nerve.

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Dr. P out.