Corrugator Supercilii
Head & Face
This is the 'frown muscle.' Botox targets this muscle to smooth out the 11 lines between your brows.
Function
Draws eyebrows medially and downward — produces vertical wrinkles
Origin
Medial end of superciliary arch
Insertion
Skin of the medial eyebrow
Innervation
Temporal branch of facial nerve (CN VII)