It's broken
a thing that open your jaw
no because your jaw is broken.
You could get lock jaw which is where your jaw clicks into an open position and won't close again. To stop this would be to not open your mouth really wide and fast.
You have a tetanus because you have a locked jaw.
help open and close your mouth
You can't. You can only open your mouth as wide as your jaw will let you.
Yes, because it states a complete thought or fact. Any additional words would merely add additional information to the main idea.
the angle and relaxation of your jaw
yes yes they are
Without other physical indications, the human jaw will come to rest in the closed position.
The jaw thrust maneuver is an alternative method to open the airway.
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.