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]

See also

• Peduncle (botany)