Pepsinogen, an inactive digestive enzyme, is secreted by the ________.

Which type of carbohydrate molecule is absorbed across the small intestine?

Which one of the following cell types found in the small intestine secretes GI hormones such as CCK or secretin?

Which one of the following types of receptors is important to the chewing reflex?

Name one accessory organ of the digestive system.

Which one of the following is NOT a function of saliva?

Which tissue layer from the gastrointestinal tract is responsible for segmentation and peristalsis?

Which one of these muscle layers is responsible for decreasing diameter of the intestinal lumen when it contracts?

Name one region of the gastrointestinal tract which contains stratified squamous epithelium in the mucosal layer.