The special visceral efferent (SVE) column contains cranial nerves responsible for innervating the muscles derived from the branchial arches. It includes the following nerves:
- Glossopharyngeal nerve (CN IX): Innervates muscles derived from the third pharyngeal arch.
- Vagus nerve (CN X): Innervates muscles derived from the fourth and sixth pharyngeal arches.
- Trigeminal nerve (CN V): Innervates muscles derived from the first pharyngeal arch.
The Nucleus ambiguus is not a nerve; it is a motor nucleus in the medulla oblongata that contributes fibers to the glossopharyngeal, vagus, and accessory nerves but itself is not categorized as a special visceral efferent column. Hence, the correct answer is:
Nucleus ambiguus