Kalmar "jejunum" tana nufin wani sashe na 'yar hanji a jikin mutum, wanda yake tsakanin duodenum da kuma ido. Yana da kusan ƙafa 8 zuwa 9 tsayi kuma yana taka muhimmiyar rawa wajen sha na gina jiki. Kalmar ta fito ne daga kalmar Latin “jejunus,” ma’ana “ba komai” ko kuma “azumi,” domin a zamanin da, mutane sun yi imani cewa wannan sashin hanji a ko da yaushe babu komai a lokacin azumi.
