spinal accessory nucleus

noun

Medical Definition of spinal accessory nucleus

: a cluster of motor neurons in the ventral horn of the cervical region of the spinal cord that give rise to the accessory nerve The spinal accessory nerve contains axons of motor neurons whose cell bodies are located in the spinal accessory nucleus— John H. Martin, Neuroanatomy: Text and Atlas, 2003

Learn More about spinal accessory nucleus

Cite this Entry

“Spinal accessory nucleus.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/spinal%20accessory%20nucleus. Accessed 24 Jan. 2021.

Comments on spinal accessory nucleus

What made you want to look up spinal accessory nucleus? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Slippery Words Quiz—Changing with the Times

  • ducreux self portrait yawning
  • What is an earlier meaning of nice?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Typeshift

Anagram puzzles meet word search.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!