Anatomical Nervous System Flashcards
oculomotor Nerves (5 cards)
Describe the function of the oculomotor nerve.
The oculomotor nerve is responsible for controlling most of the eye’s movements, including the constriction of the pupil and maintaining an open eyelid.
Explain the role of the ciliary ganglion in relation to the oculomotor nerve.
The ciliary ganglion is a parasympathetic ganglion that receives fibers from the oculomotor nerve and is involved in controlling the lens shape for focusing and pupil constriction.
Identify the muscles innervated by the oculomotor nerve.
The oculomotor nerve innervates the superior rectus, medial rectus, inferior rectus, and inferior oblique muscles.
Explain the significance of the short ciliary nerves.
The short ciliary nerves are branches of the oculomotor nerve that carry parasympathetic fibers to the ciliary body and iris, facilitating pupil constriction and lens accommodation.
What is the relationship between the oculomotor nerve and the ciliary ganglion?
The oculomotor nerve sends parasympathetic fibers to the ciliary ganglion, which then innervates the muscles responsible for pupil constriction and lens shape adjustment.
