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.
The seventh cranial nerve affects sensation across a broad area of the face â pressure on that nerve can cause the painful condition called hemifacial spasm. Hemifacial spasm, also known as tic convulsif, is a condition that causes frequent âtics,â or muscle spasms, on one side of the face.s the disorder progresses, patients may report spasms in the muscles of the lower face, which may cause the mouth to be pulled to one side. If left untreated, hemifacial spasm may ultimately affect all the muscles on one side of the face, in an almost continuous state of contraction.