When the platelets bind to a clot, they release serotonin, where it serves as a vasoconstrictor and helps to regulate hemostasis and blood clotting. Serotonin also is a growth factor for some types of cells, which may give it a role in wound healing.erotonin's presence in insect venoms and plant spines serves to cause pain, which is a side-effect of serotonin injection. Serotonin is produced by pathogenic amoebae, and its effect on the gut causes diarrhea.
The salivary glands are made up of a number of different types of cells. The type of cancer you have is named after the type of cell the cancer started in. This means that your doctor will tell you which salivary gland your cancer started in â the parotid, submandibular, sublingual or minor salivary glands.
The 2 main types of salivary glands are the major salivary glands and minor salivary glands. There are 3 sets of major salivary glands on each side of the face: 1  The parotid glands, the largest salivary glands, are just in front of the ears.2  About 7 out of 10 salivary gland tumors start here.he 2 main types of salivary glands are the major salivary glands and minor salivary glands. There are 3 sets of major salivary glands on each side of the face: 1  The parotid glands, the largest salivary glands, are just in front of the ears.