When it comes to understanding the complex interconnections of the human body, it is fascinating to explore the relationship between muscles and nerves. One particular connection that stands out is the link between the lingual nerve and the brain.

The lingual nerve is a branch of the mandibular division of the trigeminal nerve, which is the fifth cranial nerve. It is responsible for providing sensory innervation to the anterior two-thirds of the tongue, as well as the floor of the mouth. This means that it plays a crucial role in our ability to taste and perceive different flavors.

As for the muscle that is joined by the lingual nerve to the brain, the answer lies in the tongue itself. The tongue is a muscular organ that consists of several intrinsic and extrinsic muscles. One of these muscles is the genioglossus muscle, which is primarily responsible for protruding and retracting the tongue.

When the lingual nerve reaches the tongue, it branches out and innervates the various muscles within it, including the genioglossus muscle. This connection allows for the transmission of signals between the muscle and the brain, enabling coordinated movements and sensory perception.

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In conclusion, the lingual nerve is joined to the genioglossus muscle in the tongue. This connection is essential for the transmission of sensory information and coordinated muscle movements. Understanding these intricate connections between muscles and nerves is crucial in comprehending the complexity of the human body.

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