anatomical variations of the chorda tympani nerve

ANATOMICAL VARIATIONS OF THE CHORDA TYMPANI NERVE

The author studied anatomical variations of the origin of the chorda tympani nerve from the mastoid portion of the facial nerve. The studies were performed on 200 specimens of human temporal bone. It was found that the chorda tympani may arise from the facial nerve in three levels: most commonly from the mid third of its mastoid segment (70%), less commonly from the proximal third (20%), an...

Chorda tympani nerve function after myringoplasty.

This is a cross-sectional study design aimed to determine the prevalence of Chorda Tympani Nerve (CTN) injury and related symptoms following myringoplasty. Thirty patients were included in this study. The methods used were measuring taste thresholds using electrogustometer to map taste threshold on the anterior two-third of the tongue on the operated side with the non operated side as the contr...

Long-term recording from the chorda tympani nerve in rats.

Cuff electrodes with headcap connectors were implanted around the rat chorda tympani nerve. Whole nerve recordings under anesthesia were made from these nerves every week to chemical, thermal and tactile stimuli applied to the anterior tongue. The signal/noise ratio of these recordings was similar to acute recordings from the chorda tympani nerve, and the nerves were spontaneously active. Respo...

Anomalous Course of Chorda Tympani Nerve: an Operative Finding

Chorda tymapni, branch of facial nerve arising from its vertical segment is at risk throughout its course during middle ear and mastoid surgeries. We observed an unusual course of the nerve during tympanoplasty. Course of nerve was carefully observed and compared with previous studies. This is the first case to best of our knowledge describing such an unusual course of chorda tympani nerve.

Retaining Chorda Tympani Nerve Integrity During Cochlear Implant Surgery.

Impact of chorda tympani nerve injury on cell survival, axon maintenance, and morphology of the chorda tympani nerve terminal field in the nucleus of the solitary tract.

Chorda tympani nerve transection (CTX) has been useful to study the relationship between nerve and taste buds in fungiform papillae. This work demonstrated that the morphological integrity of taste buds depends on their innervation. Considerable research focused on the effects of CTX on peripheral gustatory structures, but much less research has focused on the central effects. Here, we explored...