(1) The greater superficial petrosal nerve carries the preganglionic parasympathetic fibres from the facial nerve to eventually innervate the lacrimal glands.(2) Autonomic and somatic nerves innervate the penis.(3) The hypoglossal and glossopharyngeal nerves innervate pharyngeal dilator muscles.(4) This diurnal variation in melatonin synthesis is brought about by norepinephrine secreted by the postganglionic sympathetic nerves that innervate the pineal gland.(5) Its subsequent division into anterior and posterior branches provides the sensory innervation of the anterior and lateral sides of the thigh.(6) However, in hatchling Rana the serotonergic system is arguably much more advanced since the innervation of the spinal cord by serotonergic axons by comparison with Xenopus is much more extensive.(7) The toxin inhibits the release of acetylcholine at the neuromuscular junction and affects the postganglionic sympathetic innervation of the sweat glands.(8) A constant low level of tonic contraction also characterizes the parapharyngeal musculature, the striated muscles that share their innervation with the pharynx.(9) In contrast to the innervation of the proximal esophagus, axons from vagal neurons synapse within ganglia of the myenteric plexus.(10) The pudendal nerve innervates the few striated muscles within the prostatic capsule.
