The stomach secretes this with bicarbonate as a barrier.
Leukotrienes C4 and D4 stimulate the release of this. The proteins associated with this have regions of tandem repeats of serine and threonine and also have membrane bound family members. It can expand upon leaving cells by calcium ions masking charges on the molecules in it. This is associated with the immunoglobulin class IgA. This is created by goblet cells and proteins in it are heavily glycosylated and have many disulfide bridges allowing a gel to form. The stomach secretes this with bicarbonate as a barrier. It usually includes lysozme and lactoferrin which impart anti-microbial abilities. Cilia help move this. Hagfish notably make this to evade predators and cystic fibrosis sufferers have problems stemming from production of a notably thick form. For 10 points, name this thick liquid excreted by parts of the body for protective purposes as seen during allergies.
Leukotrienes C4 and D4 stimulate the release of this. The proteins associated with this have regions of tandem repeats of serine and threonine and also have membrane bound family members.
mucus