I am the part of the digestive tract where you can find the…

I am the part of the digestive tract where you can find the enzymes to break down all macromolecules including proteins, carbohydrates, and lipids.  I’m also important in mechanical digestion. What SPECIFIC REGION and organ/duct am I? I also have a very unique mucosa to help me in my digestive functions.  What unique structures not found in other parts of the digestive system would you find in this region? There are also other accessory glands which empty their contents into my lumen.  Name ONE of those accessory organs important in chemical digestion here by delivering it’s contents.  

A doctor removed some tissue from a patient and needed the s…

A doctor removed some tissue from a patient and needed the sample reviewed. Unfortunately, you aren’t sure which surgical procedure the doctor performed and needed to identify the organ from the histology.  What organ/duct/gland do you think this sample is from? You noticed a structure (circled in blue) that helped you determine the identity of the sample.  Identify this structure circled in blue below that helped you identify the tissue.

A pathologist was looking at a tissue sample, but his assist…

A pathologist was looking at a tissue sample, but his assistant forgot to label the specimen.  Help the pathologist determine what organ or duct this tissue is from.  BONUS:   Determine whether the tissue is normal or abnormal.  If abnormal, identify the disease or condition.