In anatomical sources, the aorta is usually divided into sections. One way of classifying a part of the aorta is by anatomical compartment, where the thoracic aorta (or thoracic portion of the aorta) runs from the heart to the diaphragm. The aorta then continues downward as the abdominal aorta (or abdominal portion of the aorta) diaphragm to the aortic bifurcation.
You can perform an allergy skin test on infants as young as six months, but they're not considered totally reliable in kids younger than two years old. Before going ahead with any type of skin test, a doctor usually takes a few factors into account.
IgE allergies are treated with medications that block the release of histamines. Any medical doctor, functional medicine practitioner, or pediatrician should be able to run an IgE blood test to determine what your allergies are. Keep in mind that the stronger the immune system and the healthier your gut, the better your body will be able to tolerate accidental exposure.