Divisions of the ANS - Parasympathetic - Parasympathetic Division Outflow

6 important questions on Divisions of the ANS - Parasympathetic - Parasympathetic Division Outflow

What is the anatomical pathway for the parasympathetic division outflow from segments S2 to S4?

Between s2→s4 parasympathetic division outflow begins at the cell bodies in lateral grey matter → ventral roots → ventral rami → branch to form pelvic plexus → postganglionic found within the walls of target organs → Large intestine, urinary bladder, ureters, and reproductive organs


What do the descending pre-autonomic fibers from the hypothalamus project into within the brainstem?

project parasympathic signals into CN nuclei located inthe brainstem, which are are origins of CN

What is the name, origin, postganglionic destination, and target organ of Cranial Nerve III (Oculomotor)?

Origin = midbrain → postganglionic neurons at the post ganglion called ciliary → eye muscles
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What is the cranial nerve origin, pathway, and target glands for the parasympathetic fibers of Cranial Nerve VII (Facial Nerve)?

Origin = pons (preganglionic neuron) → Pterygopalatine & Submandibular (postganglionic neurons). Pterygopalatine Ganglion → lacrimal & nasal glands. Submandibular Ganglion → submandibular and sublingual salivary glands

What is the cranial nerve number, name, origin, relay ganglion, and target gland for the preganglionic and postganglionic parasympathetic pathway of the parotid salivary gland?

CN XI, Glossopharyngeal, origin = medulla oblongata (preganglionic neuron) → Otic ganglion (postganglionic neuron) → Parotid salivary glands

What is the name of origin of preganglionic neurons, location of postganglion, and target organs for the parasympathetic component of the vagus nerve?

origin = medulla oblongata (preganglionic neuron) → postganglion found in walls of target organs → Heart, lungs, and most visceral organs

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