Which is an example of movable bone in the skull?
The skull is a complex structure composed of various bones. Most of the bones in the skull are immovable or fixed, forming a rigid framework. However, there is one bone in the skull that is movable. It is known as the mandible or lower jawbone.
The mandible is a unique bone that articulates with the temporal bone of the skull. This articulation allows the mandible to move in a hinge-like motion, enabling us to open and close our mouths. This movement is crucial for various functions such as eating, speaking, and yawning.
The mobility of the mandible is facilitated by muscles attached to it. These muscles include the temporalis, masseter, and pterygoid muscle groups. The coordinated action of these muscles allows us to control the movement of the jaw, including opening, closing, and side-to-side movements.
Unlike other bones in the skull, the mandible is not directly connected to the rest of the cranium. Instead, it is connected through a joint called the temporomandibular joint (TMJ). The TMJ is a complex structure that allows for smooth and controlled movement of the mandible.
Related Questions
What is the only movable bone in the skull? Answer: The mandible or lower jawbone is the only movable bone in the skull.
What is the function of the mandible? Answer: The mandible enables various functions such as eating, speaking, and yawning.
How does the mandible move? Answer: The mandible moves through a hinge-like articulation with the temporal bone.
What muscles control the movement of the mandible? Answer: The temporalis, masseter, and pterygoid muscle groups control the movement of the mandible.
What is the name of the joint that connects the mandible to the skull? Answer: The temporomandibular joint (TMJ) connects the mandible to the skull.
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