Which layer(s) of the GI tract is/are made up predominately of connective tissue?

what are the four types of absorption in the GI tract ?

Describe the surface structure (villi and microvilli) and how that contributes.  Describe the various substances that enter the tract at the duodenum and what they do.  How do the final steps of digestion and absorption take place?  After nutrients are absorbed into the bloodstream, where do they go?

Identify the incorrect statement about the GI tract: (A) the stomach has three layers of smooth muscle  (B) the esophagus contains both skletal and smooth muscle (C) transit time can be tested with a sitzmarker test (D) if the pyloric sphinter is open, this can lead to heartburn

How can constipation impact the digestive system? Illustrate this in a well-written paragraph as well as a diagram.

During your lifetime you may have known individuals (or maybe even yourself) who had various digestive disorders or difficulties such as diverticulitis, ulcers, diarrhea, irritable bowel syndrome, Crohn’s disease, Celiac sprue (gluten intolerance), constipation, choking, or a related disorder.  Select one of these digestive issues and discuss the following: Provide a brief description of the digestive issue you will be discussing Describe the experience of the individual – discuss their symptoms, any dietary changes that were required, and the outcome and/or prognosis Describe the related scientific treatments and nutritional treatments of this digestive disorder.