Final answer:
The elbow does not have a major concentration of lymph nodes, unlike the axillary (axilla), inguinal, and cervical (neck) areas, which are key components of the lymphatic system.
Step-by-step explanation:
The anatomical areas that have major concentrations of lymph nodes include the axillary (axilla), inguinal region, and cervical (neck) regions. These areas are critical in the lymphatic system for filtering lymph and housing immune cells. However, the elbow area does not have a major concentration of lymph nodes. Major lymph node concentrations are found more centrally at the regions mentioned and within certain areas of the torso and pelvic regions, as indicated by the locations being inferior to the gluteal region, inferior to the umbilical region, superior to the cervical region, and superior to the popliteal region.