This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Orbit, Subject name: Anatomy
Which intrinsic ocular muscle is supplied by parasympathetic innervation - 
Select and explain. 
A. Superior rectus, B. Superior oblique, C. Constrictor papillae, D. Dilator pupillae
C: Constrictor papillae
Answer: C: Constrictor papillae 
Explanation: Ans. is 'c' i.e., Constrictor pupillae Intrinsic ocular muscles (intraocular muscles)o Intraocular muscles are -A) Muscles of iris# There are two types of muscles in iris that control the size of pupili) The iris sphinctor or constrictor pupillae (circular muscles):- These muscles are innervated by the postganglionic parasympathetic fibres from Edinger westphal nucleus via 3rd nerve and ciliary ganglion. These muscles cause constriction of pupil (Miosis).ii) The iris dilator or dilator pupillae (radial muscles):- These muscles are innervated by sympathetic system via postganglionic sympathetic fibres for the dilator pupillae from neurons in the superior cervical ganglion. These muscles cause pupillary dilatation (mydriasis).B) Ciliary muscles# These are innervated by the postganglionic parasympathetic fibers from EWN via 3rd nerve and ciliary ganglion. These muscles help in accommodation.