The origin of the mid-gut (mesenteron), outer layers become continuous, forming respectively the amnion that has no chitinous lining in the developed insect, is the disputed and the serosa (fig.
What are some causes of stopped up ears? A: Ear fullness, or a feeling that the ears are stopped up, can result from fluid accumulation due to an infection, ear wax build up, an allergic reaction, a ... Full Answer > Filed Under:
1 Cold and sinus infection can also cause swollen lymph node in front of the ear. 2  Infection in the forehead, such as a boil or an infection in the upper eye lid, as in the case of a Stye can cause swollen lymph node in front of the ear.auses of Swollen Lymph Nodes. 1  An infection on the Pinna of the ear due to ear piercing can be a cause of swollen lymph node in front of the ear. 2  Sometimes, the salivary glands present in front of the ear get swollen.