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The trigeminal ganglion (also known as: Gasserian ganglion, semilunar ganglion, or Gasser's ganglion) is the sensory ganglion of each trigeminal nerve (CN V). The trigeminal ganglion is located within the trigeminal cave (Meckel's cave), a cavity formed by dura mater.
The trigeminal ganglion lies in a space near the top of the temporal bone, on the inside of the skull, anterior to (in front of) the ear. The ganglion is enclosed and covered by Meckel’s cave, which is also called the trigeminal cistern. As the name implies, it is cavelike in shape.
Location. The trigeminal ganglion sits in a slight depression on the lateral side of the petrous ridge of the temporal bone, just posterior to the anterior most part of the ridge. It is located just posterior to the foramen lacerum where the carotid canal ends.
The convex border of the semilunar ganglion is located at the antero-infero-lateral walls of Meckel’s cave, while the concave border, which is also known as the sinus ganglion, is located postero-supero-medially in the direction of the trigeminal cistern and the ostium of Meckel’s cave.
The trigeminal ganglion is located lateral to the cavernous sinus, in a depression of the temporal bone. This depression is known as the trigeminal cave. The peripheral aspect of the trigeminal ganglion gives rise to 3 divisions: ophthalmic (V1), maxillary (V2) and mandibular (V3).
The trigeminal ganglion has an anatomically well-known semilunar form (5, 6, 8, 15) and location (at the anterior, inferior, and lateral aspects of the Meckel cave) (6, 8, 10, 15, 21). Clear recognition of this typical structure was considered positive identification.
The trigeminal ganglion, also known as the semilunar ganglion or the Gasserian ganglion, is a collection of sensory neurons located in the head that is responsible for transmitting sensory information from the face and mouth to the brain.
Each trigeminal ganglion is near your temple at the side of your head, in front of your ear. It’s located within Meckel’s cave, a space filled with cerebrospinal fluid between two layers of dura mater over your temporal bone.
The trigeminal ganglion is located on the inside of the skull in front of your ear near your temple. The motor nerve branch of the trigeminal nerve is smaller than the sensory branches and exits from the brainstem through the root of the trigeminal nerve.
The ganglion is found on the anterior surface of the petrous part of the temporal bone, in a dural pouch known as Meckel’s cave. The trigeminal ganglion is the largest of the cranial nerve ganglia.