Multiple choice The following statements concerning chorda tympani nerve are true, except that it carries secretomotor fibres to submandibular gland joins lingual nerve infratemporal fossa is a branch of facial nerve contains postganglionic parasympathetic fibres Reveal answer Fill a bubble to check yourself D Correct answer Explanation It contains efferent preganglionic parasympathetic (secretomotor) fibres which enter the submandibular ganglion, from which postganglionic fibres are relayed to submandibular and sublingual glands.