Is the chorda tympani part of the facial nerve?
The chorda tympani nerve is a branch of the facial nerve that innervates taste to the anterior two thirds of the tongue.
What is the function of chorda tympani nerve?
Special Sensory Function Like most other sensory nerves, the chorda tympani provides information on general sensation such as pain and temperature from the tongue to the brain. However, it’s also highly specialized and deals with taste signals in the front two-thirds of your tongue.
What muscles does facial nerve innervate?
| Facial nerve | |
|---|---|
| Innervates | Motor: Muscles of facial expression, posterior belly of digastric, stylohyoid, stapedius Special sensory: taste to anterior two-thirds of tongue Parasympathetic: submandibular gland, sublingual gland, lacrimal glands |
| Identifiers | |
| Latin | nervus facialis |
| MeSH | D005154 |
What are the structures and functions of the chorda tympani?
The chorda tympani is a branch of the facial nerve that originates from the taste buds in the front of the tongue, runs through the middle ear, and carries taste messages to the brain.
Where are the cell bodies of the chorda tympani located?
The spinal nucleus of V receives general somatic afferent fibres from the geniculate zone of the ear via the chorda tympani. Cell bodies of these neurons are located in the geniculate ganglia and are the site of VZV reactivation in classic Ramsay Hunt syndrome causing vesicular eruptions in geniculate zones.
What muscles do the facial nerve innervate?
Is chorda tympani Preganglionic?
The chorda tympani provides taste sensation from the anterior 2/3 tongue and also carries preganglionic parasympathetic nerve fibers that innervate the submandibular and sublingual salivary glands.
What type of nerve is facial nerve?
seventh cranial nerve
The facial nerve is the seventh cranial nerve. It contains the motor, sensory, and parasympathetic (secretomotor) nerve fibers, which provide innervation to many areas of the head and neck region. The facial nerve is comprised of three nuclei: The main motor nucleus.