^_^#Orbicularis Oculi Muscle.

#Has three parts:-
1)-orbital part.
2)-palpebral part.
3)-lacrimal part.

#Origin:-
Medial palpebral ligament and adjoming bones.

#Insertion:-
1)-orbital part:-
Makes a loop and retums to origin.

2)-palpebral part:-
Lateral palpebral raphe ligament.

3)-lacrimal part:-
Lacrimal sac.

#Nerve supply:-
Facial nerve.

#Action:-
1)-orbital part:-
Forced closure of the eyelids (protection).

2)-palpebral part:-
Light closure of the eyelids (blinking).

3)-lacrimal part:-
Dilates the lacrimal sac (to drain tears).

#The whole muscle :-
Contracts reflexly to protect the eyes aganist any danger.






#Butheina...🌸✨
✍✍✍✍✍

https://t.me/DentalKD