Which bone forms the lower jaw?

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Multiple Choice

Which bone forms the lower jaw?

Explanation:
The bone that forms the lower jaw is the jaw bone, anatomically known as the mandible. It is the only movable bone of the skull and hinges to the skull at the temporomandibular joints, allowing chewing and speaking. The jaw bone creates the lower facial contour and holds the lower teeth. The other options are bones located elsewhere: a skull bone refers to the cranium, the upper arm bone is the humerus, and the collar bone is the clavicle. So, the jaw bone best identifies the structure forming the lower jaw.

The bone that forms the lower jaw is the jaw bone, anatomically known as the mandible. It is the only movable bone of the skull and hinges to the skull at the temporomandibular joints, allowing chewing and speaking. The jaw bone creates the lower facial contour and holds the lower teeth. The other options are bones located elsewhere: a skull bone refers to the cranium, the upper arm bone is the humerus, and the collar bone is the clavicle. So, the jaw bone best identifies the structure forming the lower jaw.

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