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Because your upper jaw is part of your skull which is connected to your spine and your lower jaw is connected to your upper jaw by a hinge type joint that allows you to move your lower jaw so that we can eat. So therefore we cannot move our upper jaw because that would require moving our head which would move our lower jaw too.

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Ellen Funk

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2y ago

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Related Questions

Does the crocodile move its upper jaw?

No, crocodiles do not move their upper jaw; it is fixed in place. Instead, they primarily move their lower jaw to open and close their mouths. This anatomical structure allows them to exert a powerful bite, as the upper jaw serves as a stable platform while the lower jaw does the movement.


Why can you move your lower jaw and not the upper jaw?

Because your upper jaw is part of your skull which is connected to your spine and your lower jaw is connected to your upper jaw by a hinge type joint that allows you to move your lower jaw so that we can eat. So therefore we cannot move our upper jaw because that would require moving our head which would move our lower jaw too.


Does both upper and lower jaw of a dog move?

No the upper jaw is attached to the rest of the skull and is fixed in position while the bottom jaw is jointed.


What is an immobilize?

It is a joint that can't move e.g your upper jaw is immobile and the lower jaw is mobile.


Can you move your top jaw?

No. It is part of your skull so it doesn't move like your lower jaw. Your lower jaw moves because it is a separate bone attached to the tendons and muscles that move it.


What is the jaw called?

Upper jaw is a maxilla, and the lower jaw is a mandible.


What names are given to the lower and upper jaw?

the name for the upper jaw is maxilla and the name for the lower jaw is mandible


What is the name of the movement when you move your lower jaw forward so that your lower teeth are in front of your upper teeth?

an under-bite


What are facts about the human body mouth?

there are 32 teeth in the average human body mouth.The upper jaw, that is part of the skullThe lower jaw, connected with the upper jaw and with ability to move up-down and from side to side


Can a infected top tooth infect the lower jaw?

No, but a toothache in the upper jaw can refer pain to the lower jaw.


Is the lower jaw of a mammal called mandible?

The lower jaw of a mammal is called a mandible. The upper jaw is the maxilla.


What does the upper jaw do on a fish?

The upper jaw on fishes functions the same as the upper jaw in Humans . They just have different teeth. The upper jaw on most animals functions as a platform for the lower jaw to close against .