Which layer of the digestive tract helps to trap disease-causing microbes and protect the delicate tissues of the digestive tract from stomach acid?

Question

Quizplus · Accepted Answer

The mucosa, a mucous membrane that lines the digestive tract, helps to trap disease-causing microbes. This is important because the digestive tract is open to the outside world at both ends (i.e., the mouth and the anus). In addition to trapping microbes, the mucosa helps to protect the delicate tissues of the digestive tract from stomach acid. The submucosa contains the blood vessels and nerves that supply the digestive tract. The muscle layer contains smooth muscle, which contracts and relaxes, allowing peristalsis to occur. The serosa is a tough outer layer of connective tissue.

Which Layer of the Digestive Tract Helps to Trap Disease-Causing