Indusium: the case made by an insect larva: a membranous layer of the embryo of Locustidae below the serosa. Explanation of Terms Used in Entomology John. B. Smith. serosa: the outer membrane that envelops the forming embryo, the amnion and the remainder of the egg. Explanation of Terms Used in Entomology John.
In essence, your body forms an allergic reaction to stress. Unfortunately, stress can not be eliminated with histamine, so instead, the histamine just causes hives to appear on your face, neck, chest and other parts of your body.
Causes of neck cysts. There are many causes of cysts on the back of the neck or on the side of the neck. The most commonly seen cysts on neck are enlarged lymph nodes that are caused by bacteria or viral infections, malignancy or other causes.Infections affecting the salivary gland under the jaws may cause enlargement of the muscles in front of the neck commonly referred to as lumps.ysts on neck should not be cause of alarm as some require minimal or no treatment. It has also been found that cysts do not grow rapidly nor do they spread to other parts of the body as the cancerous lumps generally do.