The formation of facial muscles in the fetus takes place, he begins to develop them, which is expressed in the frown, opening and closing of the mouth. The fetus gets the opportunity to open its eyes for the first time, which up to this point were tightly closed for centuries, it begins to learn to blink. In place of eyelashes and eyebrows, you can see thin fluffy hairs. If the auricles before this stage were located in the wrong place, closer to the neck, now they are already placed as in an adult. Although there is a pronounced reaction of the fetus to loud sounds, at this stage, his middle ear is not yet able to hear. The reaction is due to such a way of perception as bone conduction. It turns out that the fetus hears through the dense parts of the body (bones).
The future baby has already completed the process of formation of all joints and bones. The process of ossification, i.e., compaction of bone tissue, will continue not only during the entire remaining period, but also after birth, almost until puberty.
When conducting an ultrasound examination, it is already possible to reliably determine the sex of the child, since his external genitalia are fully formed. It is at this time or a little later (depending on the time of the appointed diagnosis) that the mother gets the opportunity to find out who will be born to her.
The kidneys work intensively in the fetus. Now they begin to perform a partially excretory function, slightly reducing the load that lies on the placenta. The urinary canal is formed, the fetus swallows 300-500 mm of amniotic fluid daily, they pass through its intestines and are excreted by the kidneys. Urination is performed in small portions every hour, urine enters the amniotic fluid.