In: Anatomy and Physiology
differentiate between mucous and serous membranes
| Mucus membrane | Serous membrane | 
| Lines the body cavities and tubes that open up to outside | Line the body cavities that does not open up to outside | 
| Secretes thick substances called mucus | secretes thin and watery fluid called serous fluid | 
| Contains single layer | contains double layer and fluid in-between | 
| Single mucus layer | contains parietal layer lines body and visceral membrane covers organ | 
| Mucus has function of trapping the dust and debris and also keeps the membrane soft and moist | serous fluid has function of prevents the friction when the organ moves | 
| Inflammation produces more mucus | serous membrane itself get infection | 
| Has the stratified squamous epithelium contains goblets cells in-between | epithelial sheet is a simple squamous cells layer | 
| Examples are membranes that lines respiratory tubes, GI tract | Examples are membranes that lines lungs(pluera), heart(pericardium), abdomen (peritoneam) |