|
|
| protective secretion of the mucus membranes; in the gut it lubricates the passage of food and protects the epithelial cells; in the nose and throat and lungs it can make it difficult for bacteria to penetrate the body through the epithelium | |||
|
|
| a destructive and contagious bacterial disease of horses that can be transmitted to humans | |||
|
|
| nasal mucus |