Ramus sensoria ganglii ciliaris

Ramus sensoria ganglii ciliaris

The Ramus sensoria ganglii ciliaris is a branch of the ciliary ganglion, which is a small parasympathetic ganglion located in the orbit near the eye. This nerve branch is involved in the sensory innervation of the eye and its associated structures.

Anatomy

The ciliary ganglion is situated between the optic nerve and the lateral rectus muscle. It receives input from three sources:

• The oculomotor nerve (cranial nerve III), which provides parasympathetic fibers.
• The sympathetic nervous system, which provides sympathetic fibers.
• The nasociliary nerve, a branch of the ophthalmic nerve (V1), which provides sensory fibers.

The ramus sensoria ganglii ciliaris is primarily associated with the sensory fibers that pass through the ciliary ganglion without synapsing. These fibers are responsible for transmitting sensory information from the eye to the brain.

Function

The primary function of the ramus sensoria ganglii ciliaris is to carry sensory information from the eye, including the cornea, iris, and ciliary body, back to the central nervous system. This sensory information is crucial for reflexes such as the corneal reflex and for the perception of pain and other sensations in the eye.

Clinical Significance

Damage or dysfunction of the ramus sensoria ganglii ciliaris can lead to sensory deficits in the eye, affecting reflexes and sensation. Conditions such as trigeminal neuralgia or ophthalmic nerve damage can impact the sensory pathways involving this nerve.

See Also

• Ciliary ganglion
• Oculomotor nerve
• Nasociliary nerve
• Corneal reflex

References

• Anatomy, Head and Neck, Ciliary Ganglion
• Ciliary Ganglion - ScienceDirect