Autonomic Nerves

Question 1

Oculomotor nerve

Answer 1

Cranial nerve III

-> ciliary ganglion -> constrict pupil, thicken lens

Question 2

Facial Nerve

Answer 2

Cranial nerve VII

• > pterygopalatine ganglion -> lacrimal gland -> tears
• > submandibular ganglion -> submandibular and sublingual glands -> saliva

Question 3

Glossopharyngeal Nerve

Answer 3

Cranial Nerve IX

-> otic ganglion -> parotid glands -> saliva

Question 4

Vagus Nerve

Answer 4

Cranial Nerve X
-> unnamed ganglia -> heart, bronchioles, GI (up to left colic flexture)
Decrease heart rate and respiration
Increase peristalsis

Question 5

Sacral Spinal Cord Segments

Answer 5

S2-S4
Parasympathetic innervation where vagus leaves off
Large intestine after left colic flexture, rectum, pelvis, reproductive structures