Digestive Homeostasis Worksheet

Digestive Homeostasis

Read each question carefully and provide detailed answers based on your understanding of digestive homeostasis. Refer to the diagram of the human digestive system as needed.

1. Which hormone is primarily responsible for stimulating the release of bicarbonate from the pancreas to neutralize acidic chyme in the duodenum?

2. The presence of fatty acids and amino acids in the duodenum stimulates the release of which hormone, leading to gallbladder contraction and release of bile?

3. The   reflex is initiated by distension of the stomach and increases motility in the ileum.

4. Glucose homeostasis is primarily regulated by the hormones   and  , which are produced by the pancreas.

5. Describe the role of negative feedback loops in maintaining digestive homeostasis. Provide a specific example.

6. Ghrelin is a hormone that suppresses appetite, while leptin stimulates it.

7. Explain the interplay between the nervous system (both intrinsic and extrinsic) and the endocrine system in regulating the various stages of digestion, from cephalic phase to intestinal phase. Discuss how these systems work together to maintain digestive homeostasis.