Important Note

Tufts ended funding for its Open Courseware initiative in 2014. We are now planning to retire this site on June 30, 2018. Content will be available for Tufts contributors after that date. If you have any questions about this please write to

Tufts OpenCourseware
PREV : Peyer's patch int the ileum of the dog, cut "en face" NEXT : Thymus of the dog
Author: Paul Kwan, Ph.D.
Thymus of the dog at low power
Description:A thin connective tissue forms the capsule of this organ. Connective tissue septae extending inward from the capsule divide the organ into lobules. The cortex is darker and the medulla is lighter. The medulla is continuous between the adjacent lobules (although they look like isolated islands here). PK2966-96. H&E. Thymus, Immune system, Dog.