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:
Lymph nodes located in the head and are the most commonly swollen nodes. The ears, nose, and mouth are the closest channels of elimination when experiencing one of the infections mentioned above. For this reason, lymph nodes behind the ear, in the throat, and under the jaw are some of the most commonly swollen nodes. Other causes include cancers like lymphoma or leukemia, certain medications, and certain autoimmune diseases, although these causes are rare.