Now the lungs are adapted to breathe ordinary air. Breathing is rhythmic and body temperature is controlled by the central nervous system. The baby may cry and respond to external sounds.
The child opens his eyes while awake and closes them while sleeping.
The skin becomes thicker, smoother and pinkish. Starting from this period, the fetus will actively gain weight and grow rapidly. Almost all babies born prematurely at this stage are viable. The weight of the fruit reaches 2500 g, and the length is 450 mm.