I learned from a linguistics course that at birth, the larynx is situated up high, and as the infant grows, it drops gradually. Which makes speech easier and also chokes likelier. Materials talking about this phenomenon are scarce, my searches yielded almost nothing. Edit: I used ddg and google to search for a number of combinations of [larynx & its synonym] [drop, lower, etc.] [infant/child] [choke] [speech]... Each time I explored the links in at least the 1st result page but couldn't find satisfactory answers.
Before all of these searches, I've already known that the larynx contains the vocal cords, which control the voicing of our speech. But it being in a higher or lower position in the neck seems to have no effect on the glottis, so why it was stated (in the course) that a lower larynx helps speech easier?
I also knew that choking happens when the epiglottis fails to close when a person swallow, leading to food appearing in the lungs. So how does the larynx being higher or lower have anything to do with changed risk of choking? Edit ends.
How exactly does a lower larynx make speaking easier? I think it can only make our voice deeper?
The same for the choking problem. I can't see how a higher larynx can prevent that. Images or videos will be much appreciated.