A student is developing a model to demonstrate how the digestive and circulatory systems interact in humans.

Question

Which of these should be included in the model to accurately show this interaction?

Responses

1) The filtration of blood in the kidneys and the formation of urine

2) The exchange of gases in the lungs and the transport of oxygen to the brain.

3) The breakdown of food in the stomach and the elimination of waste through the colon.

4) The absorption of nutrients in the small intestine and their transport via the bloodstream to various body cells.

Answer 1

To accurately show the interaction between the digestive and circulatory systems, the best choice is:

4) The absorption of nutrients in the small intestine and their transport via the bloodstream to various body cells.

This response highlights the crucial process where nutrients from digested food are absorbed in the small intestine and transported through the bloodstream (part of the circulatory system) to cells throughout the body, demonstrating the direct interaction between the two systems.