Levator labii superioris muscle

Beginning: maxilla – edge of the orbit
 * pars angularis: proc. frontalis maxillae
 * pars infraorbitalis: above the exit of nervus n. infraorbitalis
 * pars zygomatica: os zygomaticum

Attachment: upper lip – m. orbicularis oris

Innervation: n. facialis

Function: pulls sulcus nasolabialis cranially + arches laterally (joy)