Little tube, as on the anthers of species of Vaccinium (blueberries) and relatives (in the Ericaceae).
A small tube or canal, especially in the kidneys.
Tube in the nephron which collects and processes urine from the glomeruli before the urine passes into the pelvis. to top
a small, narrow tube or anatomical channel.
one of the many coiled, threadlike tubes within the testes