Radical 185 or radical head (首部) meaning "head" is one of the 11 Kangxi radicals (214 radicals in total) composed of 9 strokes.

In the Kangxi Dictionary, there are 20 characters (out of 49,030) to be found under this radical.

首 is also the 187th indexing component in the Table of Indexing Chinese Character Components predominantly adopted by Simplified Chinese dictionaries published in mainland China.

• 
  Oracle bone script character
• 
  Bronze script character
• 
  Large seal script character
• 
  Small seal script character

The radical is also used as an independent Chinese character. It is one of the Kyōiku kanji or Kanji taught in elementary school in Japan.^[1] It is a second grade kanji.^[1]

• Fazzioli, Edoardo (1987). Chinese calligraphy : from pictograph to ideogram : the history of 214 essential Chinese/Japanese characters. calligraphy by Rebecca Hon Ko. New York: Abbeville Press. ISBN 0-89659-774-1.
• Lunde, Ken (Jan 5, 2009). "Appendix J: Japanese Character Sets" (PDF). CJKV Information Processing: Chinese, Japanese, Korean & Vietnamese Computing (Second ed.). Sebastopol, Calif.: O'Reilly Media. ISBN 978-0-596-51447-1.

• Unihan Database - U+9996