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The Endowment for Human Development
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Main Stem Bronchi


9 weeks

From The Biology of Prenatal Development.Buy Now

Script: ۹ اوونۍ

په تنفسی سيستم کې، د اصلي تنې ښي او کيڼ برانشي موجود دي او په پای کې يوځای کوي (يعنې) قصبة الريه يا هوايي نل له سږو سره.

All ages referenced to fertilization, not last menstrual period.
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