
Pancreas
An acinus cut in cross section resembles a grapefruit cut in half. Each grapefruit section represents an acinar cell; the central core of the grapefruit corresponds to the small lumen of the acinus into which the secretory product is released. 1000x

Acini
An acinus cut in cross section resembles a grapefruit cut in half. Each grapefruit section represents an acinar cell; the central core of the grapefruit corresponds to the small lumen of the acinus into which the secretory product is released. 1000x

- Rough endoplasmic reticulum
An acinus cut in cross section resembles a grapefruit cut in half. Each grapefruit section represents an acinar cell; the central core of the grapefruit corresponds to the small lumen of the acinus into which the secretory product is released. 1000x

- Secretory granules
An acinus cut in cross section resembles a grapefruit cut in half. Each grapefruit section represents an acinar cell; the central core of the grapefruit corresponds to the small lumen of the acinus into which the secretory product is released. 1000x

- Centroacinar cells
An acinus cut in cross section resembles a grapefruit cut in half. Each grapefruit section represents an acinar cell; the central core of the grapefruit corresponds to the small lumen of the acinus into which the secretory product is released. 1000x