19 Weeks of Pregnancy | Second Trimester | Fetal Stage
At 19 weeks of pregnancy, fetal growth begins to slow [1]. Brain development makes it easier for the fetus to start consciously moving its muscles [2]. The fetus also notices more sounds now that its hearing is better developed, including your voice [2].
The fetus is developing vernix caseosa, a waxy protective substance secreted by the sebaceous glands on the skin [1,2]. Vernix caseosa will cover and protect the fetus’s delicate skin from scratches, chapping, and the effects of exposure to amniotic fluid [1,2].
Lanugo, a soft and silky hair, also covers the fetus’s skin [3]. The fetus will shed its lanugo before birth.
References:
1. Moore KL, Persaud TVN, Torchia MG. The Developing Human: Clinically Oriented Embryology. Philadelphia: Elsevier; 2016.
2. Harms R, Wick M, editors. Mayo Clinic Guide to a Healthy Pregnancy. Boston: Da Capo Press; 2011.
3. Betts JG, Young KA, Wise JA, Johnson E, Poe B, Kruse DH, et al. 28.3 Fetal Development. Anatomy & Physiology. Houston: OpenStax; 2013.
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Produced and written by: Samantha Lattof, PhD MSc
Medically reviewed by: Ayodeji Olelakan Abere, MD MBA MHA
Animation by: SciePro / Pond5
Music by: audiomarket / Pond5
Narration by: Ava / Wellsaid
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Disclaimer: This content including advice provides generic information only. It is in no way a substitute for a qualified medical opinion. Always consult a specialist or your own doctor for more information.
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