Ключевые слова: anatomy, care, cell, defense, detail, endocrine, endocrine gland, endocrine system, endocrinology, follicle, glands, histological, histology, hormonal, hormone, hyaline, hyperthyroid, hypertrophy, immunology, light micrograph, light microscope, lymph, lymphatic, lymphocyte, lymphocytic, lymphoid, lymphoma, medical, medulla, microscope, microscopic, microscopy, mucosa, nodular, organ, parathyroid, pathology, research, section, structure, study, thymus, thymus gland, thymus gland cortex, thyroid colloid, thyroid follicle, thyroid gland, thyroid tissue, torso, trachea,