Ciliary Ganglion - Autonomic control of the eye | Anatomy Tutorial

#ciliary #eye #oculomotor
Link for Donations paypal.me/stud...
/ anatomy.knowledge
The ciliary ganglion in humans is approximately 3mm in size, and located approximately 5 mm posterior to the globe and lateral to the optic nerve. It is a parasympathetic ganglion and contains approximately 2500 neurons.
From the forepart of the ganglion are arising the short cilliary nerves.They pierce the sclera at the back part of the bulb of the eye.
The cilliary ganglion has three roots.
The sensory root arises from the nasociliary nerve, a branch of the ophthalmic nerve and unites with the cilliary ganglion at its posterior superior angle. The sensory root transmits preripheral projections from the pseudouniporal neurons located in the trigeminal ganglion. These fibers pass through the cilliary ganglion and further on piercing the eye by way of short cilliary nerves , they travel in the pericoroidal space to supply the cornea, cilliary body and iris. Some of these peripheral projections from the trigeminal ganglion follow the course of the long cilliary nerves , branches of the nasociliary nerve, which pierce the posterior part of the eyeball.
The second root of the cliary ganglion to be described is the motor root. The motor root is a branch of the nerve to inferior oblique muscle and unites with the ciliary ganglion at it posterior inferior angle. The nerve to inferior oblique muscle is a branch of the inferior division of the oculomotor nerve. Parasympathetic preganglionic fibers from edinger-westphal nucleus located in the midbrain will travel within the oculomotor nerve, then within its inferior division and arrive at the ciliary ganglion by way of its motor root. In the ciliary ganglion the parasympathetic preganglionic fibers will sinapse with the parasympathetic neurons located within the ganglion. From the cilliary ganglion the parasympathetic postganglionic fibers will pierce the posterior end of the eyeball by way of short ciliary nerves. Traveling in the pericoroidal space, these parasympathetic fibers will supply the cilliary muscle and pupilar sphincter muscles. Stimulation of these fibers constricts the pupil and accommodates the eye for near vision.
The third root of the cilliary ganglion is the sympathetic root which contains sympathetic postganglion fibers.

[@diyamaria8584]

I was searching so long for a video to understand the ciliary ganglion...so glad i stumbled upon this one...informative and concise while making the concept clear and easy to understand...thankyou !!

[@Cupcakenerdy692]

This is so informative, please keep posting videos!

[@sarayounis9776]

beautiful drawing and beautiful explanation thank you so much
this is the only video I have found to explain the ciliary ganglion is such a great way

[@rishabhraj8424]

Love the way you explain it so simply

[@surjyotyhota7231]

greatest explainer of all time!!

[@AnatomyKnowledge]

Thank you!

[@kkminaj000]

very helpful!! thank you a lot!!! Its helping me rewind when doing ocular pharmacology

[@alevelsdemystified3410]

💜💜💜I watch pretty much all your videos, they are that excellent

[@Sveccha93]

Beautiful drawing and excellent information.

[@tariqhassan7306]

Amazing and unparalleled presentation...

[@dramymagdy]

Talented drawings

[@shajup.a6379]

Your videos are so informative sir .❤
Looking forward for more videos 👍🏻👍🏻👍🏻👍🏻

[@rijakhalid9011]

Lifesaver. Thank you!!!

[@slaylife9134]

really good to visualize it

[@KillerTacos54]

Very helpful, thank you

[@luketanner9726]

It is parasympathetic innervation of the eye which stimulates accommodation for near objects. Ciliary body contraction and pupil constriction. Otherwise great video and excellent drawings! Thank you.

[@AnatomyKnowledge]

Didn't I said the same thing as you regarding the parasympathetic? Thank you.

[@luketanner9726]

@@AnatomyKnowledge Yes you did. Its just at 4:32 you said distant accommodation. The word accommodation is usually referring to the eye looking at a near object not distant.

[@rambabuchappidi2147]

Accommodation refers to both distant & near, as mentioned in the video sympathetic stimulation for dilation of pupil,& parasympathetic for constriction of pupil

[@dinasalama5049]

Thank you so much!

[@srivatsavsrivatsav629]

Wonderful video
Thank u so much
it is very informative👌👌

[@unknowndomain6357]

The second root of the ciliary ganglion which is described as the motor root is the parasympathetic supply of the eye?

[@sreejeshbabu4692]

Yes

[@alevelsdemystified3410]

sir please make more videos soon!

[@lexandra17]

Thanks!

[@misbahnaaz9794]

Thankyou sir🤗🤗

[@dv123abc]

Any idea how someone (42yo) may reverse presbyopia permanently without surgery or corrective eyewear? I'm looking for a solution 🙏🏻

[@akashagarwal6425]

Too good

[@dakshkumarsharma8166]

Sir can you please mention the book for reference...

[@kritikagupta2347]

Motor root is not present I suppose,

[@s.x.6656]

Very beutiful 😍

[@bonnybonny3247]

Can you enable translation please?

[@chaos.king.]

❤️❤️

[@shoumikhasan6281]

Are you italian?

[@ryankhan4302]

Its not motor ....its parasympathetic 😅

[@sagarsahita]

Probably he means Visceral Motor....which means autonomic parasympathetic

[@lakshitha3851]

He said it right! Coz the root supplies the muscles(sphincter pupillae nd ciliaris), thus AKA motor root.