Slideshow: Favorites
The Mouth, Lips, and Tongue
#159, Slide 42 of 74
9 weeks, 2 days
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Note:Swallowing amniotic fluid begins at about nine weeks following fertilization. The mouth is officially open for business.Label Key:1. lower lip 2. tongue 3. upper lip 4. roof of mouth | ||
| All ages referenced to fertilization, not last menstrual period. |
