The lining of the mouth is an example of a _____ membrane.Group of answer choicesmucousserouscutaneoussynovial

Step 1: Identify the Options

The given options are:

1. Mucous
2. Serous
3. Cutaneous
4. Synovial

Step 2: Analyze Each Option

1. Mucous Membrane: This type of membrane lines body cavities that are open to the exterior, such as the mouth, nasal passages, and digestive tract. It is involved in secretion and absorption.

2. Serous Membrane: This membrane lines closed body cavities, producing serous fluid to reduce friction between organs.

3. Cutaneous Membrane: This is essentially the skin, which covers the entire body and is not involved in lining cavities but rather protecting the underlying tissues.

4. Synovial Membrane: This membrane lines the cavities of joints and produces synovial fluid for lubrication.

Step 3: Conclusion

Given that the lining of the mouth opens to the exterior and is involved in secretion (mucus), the correct choice is mucous.

Final Answer

The lining of the mouth is an example of a mucous membrane.