Peduncle (anatomy)

Not to be confused with Pedicle (anatomy).
For other uses, see Sessility (disambiguation).

A peduncle is an elongated stalk of tissue. Sessility is the state of not having a peduncle; a sessile mass or structure lacks a stalk.[1]

In medicine, a mass such as a cyst or polyp is said to be pedunculated if it is supported by a peduncle.[2]

There are in total three types of peduncles in the cerebellum of the human brain, known as superior cerebellar peduncle, middle cerebellar peduncle, and inferior cerebellar peduncle.[3]

Pedunculated eyes are also the defining attribute of the stylophthalmine trait found in certain fish larvae. The caudal peduncle is a slightly narrowed part of a fish where the caudal fin meets the spine.[4]

  1. ^ Hickey, Michael; King, Clive (2000-11-16). The Cambridge Illustrated Glossary of Botanical Terms. Cambridge University Press. p. 30. ISBN 9780521794015.
  2. ^ Jones, Betty (2010-06-24). Comprehensive Medical Terminology. Cengage Learning. p. 1140. ISBN 1133416934.
  3. ^ Perrini, Paolo; Tiezzi, Giacomo; Castagna, Maura; Vannozzi, Riccardo (2013-04-01). "Three-dimensional microsurgical anatomy of cerebellar peduncles". Neurosurgical Review. 36 (2): 215–225. doi:10.1007/s10143-012-0417-y. ISSN 1437-2320.
  4. ^ Fishbeck, Dale W.; Sebastiani, Aurora (2015-03-01). Comparative Anatomy: Manual of Vertebrate Dissection. Morton Publishing Company. p. 552. ISBN 9781617314391.