3D video baby update: Week 22

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Mom, I'm like a squid (27.8cm, 430 grams)

My taste buds are fully developed and functional - I have about 10,000 taste buds, more than an adult! I can distinguish sweet, sour, salty, and bitter tastes in amniotic fluid. Meconium continues accumulating in intestines as a dark, sterile mass. Lungs begin producing surfactant, a substance that reduces surface tension and enables breathing. The inner auditory cortex in the brain is functional, meaning I not only hear sounds but the brain can process and interpret them. If I'm a boy, testes continue producing testosterone, which affects external genital development.

Remember mom, every child develops at their own pace and has their unique timeline. If you have any doubts about my development in your belly, consult with a doctor.