Question

A food-borne illness could spread through the body by infecting which layer of the alimentary canal, and why? The serosa, because it secretes fluid that lubricates the intestines The serosa, because it contains blood vessels and lymphatic ducts The submucosa, because it contains blood vessels and lymphatic ducts The submucosa, because it secretes fluid that lubricates the intestines

Answer 1

A. All of the interstitial fluid that leaks from the lymphatic vessels is picked up by the capillaries.

Answer 2

The submucosa, because it contains blood vessels and lymphatic ducts

Step-by-step explanation:

The submucosa is a layer of tissue below the mucosa that contains lymphatic ducts and blood vessels formed by angiogenesis and vasculogenesis, respectively