<prompt> Which of the following is false about inferior oblique muscle -It is the shoest muscleSupplied by 3th cranial nerveOriginates from annulus of zinnIts primary action is extorsion  <response>: Answer- C. Originates from annulus of zinnIt originates from orbital plate of maxilla lateral to the orifice of nasolacrimal duct.It is the only muscle to take origin from front of the orbit. Other recti muscle take origin from annulus of zinn. 