CANNULA

n. a thin, narrow tube which is designed to be safely inserted into the body. As an instrument, it allows the escape of fluid from a particular body cavity. Through a blood vessel, it also introduces new substances without the use of hypodermic injections.

CANNULA: "A cannula is inserted into the body when fluid needs to be drained from a cavity or when medication must be administered through the bloodstream."
Cite this page: N., Pam M.S., "CANNULA," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/cannula/ (accessed September 21, 2019).
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