1 Purulent discharge and Purulent, sticky discharge (2 causes). 2  Purulent discharge and Sensory symptoms (2 causes). 3  Purulent discharge and Skin symptoms (2 causes). 4  Purulent discharge and Temperature symptoms (2 causes). 5  Purulent discharge and Areolar lesions (1 cause). 6  Purulent discharge and Arm symptoms (1 cause).
Membranes. 1  Mucous membranes line cavities that open to the outside of the body (digestive, respiratory, excretory, and reproductive tracts). 2  They contain glands and secrete mucus. 3  Serous membranes line trunk cavities that do not open to the outside of the body (pleural, pericardial, and peritoneal cavities).
The mucosa (also known as mucus membrane) is the innermost layer of tissue. Itâs a moist epithilial membrane that lines the alimentary canal lumen from mouth to the anus. The mucosa has three major functions: 1  Secrete mucus, digestive enzymes, and hormones. 2  Absorb the end products of digestion into the blood.3  Protect against infectious disease.he basic structure of the alimentary canal, including its four basic layers. In certain regions of the alimentary canal, the mucosa may perform one or all three of these functions. Digestive mucosa is made up of three sublayers: (1) a lining epithelium, (2) a lamina propria, and (3) a musclularis mucosae.