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:
Quick Answer. Underarm lymph node swelling caused by an infection or other illness can also cause pain, according to WebMD. Lymph nodes located in the groin, behind the ears, at the back of the head or under the jaw may also swell.