How to pronounce “upper jaw” in English

bone the upper jaw is flat okay you can see it better on the side view and you can also see in the side view that his

jaw a recessive jaw um your upper jaw that's if that's recessive or small or

And this is a 2.4 million-year-old upper jaw that was found at the side of Hadar in much earlier deposits, more recent deposits.

it it causes your lower jaw and your upper jaw especially not to grow as well as it should be so that predisposes to