The stomach is beset throughout its length with numerous small, finger-like caecal tubes.
Various, Encyclopaedia Britannica, 11th Edit...(2010)
Caecal tubes or pouches: sac, or blind tube-like structures surrounding the chylific ventricle at its junction with the crop, and secreting a digestive ferment.
Smith, John. B., Explanation of Terms Used in Entomo...(2010)
The glandular tissue consists of caecal vesicles that form grape-like clusters around the milk tubules.
Craig, R. A., D. V. M., Common Diseases of Farm Animals(2010)