Use the drop-down menus to indicate where each endocrine system structure is located.
The thyroid, parathyroid, and thymus are located in the A.brain B.throat C.abdomen.
The adrenals, pancreas, testes, and ovaries are located in the A.brain B.throat C.abdomen.
The pineal, hypothalamus, and pituitary are located in the A.brain B.throat C.abdomen.