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Pharyngeal pouch #5
Started by DrTacoElf
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according to Langman's, the 5th pouch is usually considered to be part of the 4th pouch. And yes, this is where we get the ultimobranchial body from, which later is incorporated in to the thyroid gland (c-cells).
So it does say that the 4th and 5th have different products, but it also says that they are generally considered the same since the 5th degenerates and the ultimo. body becomes part of the 4th.
Gray's pretty much said the same thing.
So it does say that the 4th and 5th have different products, but it also says that they are generally considered the same since the 5th degenerates and the ultimo. body becomes part of the 4th.
Gray's pretty much said the same thing.
Ok whats the deal with pouch #5. Some texts say that it degrades (dental decks say this). Others say it gives rise to ultimobranchial body which forms the parafollicular or C cells of the tyroid gland (Kaplan and various internet sources say this).
Anyone know which is the correct answer for part I
study what the decks say
