See Also: orbicular muscle(medicine)
orbicular muscle of eye(medicine)
orbicular muscle of mouth(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
orbicular(dictionary)
Orbicular(medicine)
orbicular process(medicine)
orbicular ligament(medicine)
orbicular zone(medicine)
orbicular bone(medicine)

transition state (medicine) and orbicular muscle of eye (medicine)


transition state (medicine)


transition state


The activated state of a molecule that has partly undergone a chemicalreaction.


orbicular muscle of eye (medicine)


orbicular muscle of eye -->
orbicularis oculi muscle
<anatomy> Consists of three portions: orbital part, or external portion, which arises from frontal process of maxilla and nasal process of frontal bone, encircles aperture of orbit, and is inserted near origin; palpebral part, or internal portion, which arises from medial palpebral ligament, passes through each eyelid, and is inserted into lateral palpebral raphe; lacrimal part (tensor tarsi muscle, Duverney's or Horner's muscle) arises from posterior lacrimal crest and passes across lacrimal sac to join palpebral portion; action, closes eye, wrinkles forehead vertically; nerve supply, facial.

Synonym: musculus orbicularis oculi, musculus orbicularis palpebrarum, orbicular muscle of eye, sphincter oculi.