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Правда ли, что младенцы умеют дышать и глотать одновременно?

26 Марта 2022
Просмотров: 369
Правда ли, что младенцы умеют дышать и глотать одновременно?
Удивительно, но новорожденные дети могут одновременно дышать и глотать до семи-девяти месяцев.


Контролировать чередование дыхания и сосания материнской груди маленьким людям еще сложно, и природа избавила их от такой обязанности. Попробуйте – у вас, как и любого другого взрослого человека, это никогда не получится. Однако дышать малыши могут исключительно через нос, способность вдыхать воздух ртом приходит гораздо позже.

У маленьких детей вход в короткую и широкую гортань находится выше, чем у взрослого – над нижне-задним краем небной занавески и сообщается только с носом. А путь для еды находится по сторонам от гортани, где и предусмотрено сообщение между ртом и глоткой. 

Такая особенность не дает малышам поперхнуться и позволяет беспрерывно «добывать» грудное молоко, не отвлекаясь на дыхание. Кстати, дети, которых кормили грудью, имеют более ровные и красивые зубы, чем "искусственники".

Так почему же ребенок теряет столь полезную способность взрослея? Оказывается, строение органов меняется, как только маленький человек начинает учиться разговаривать. В этот момент развиваются голосовые связки и гортань опускается. 

В дальнейшем во время еды мягкое небо закрывает сообщение с носом, а надгортанник перекрывает дыхательные пути. Поводов для огорчения нет, взрослому человеку вряд ли нужна столь бесполезная функция.


ФОТО: pixabay.com



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laji
16 Апреля 2022 20:39:07
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laji
16 Апреля 2022 20:38:52
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