Problem: The anterior triangle that forms the midline of the neck includes the hyoid bone, thyroid cartilage, cricoid cartilage, trachea, thyroid, and parathyroid glands. When palpating the thyroid gland, ask the individual to swallow while keeping fingers steady in this position, and the thyroid isthmus can be felt rising under the pads of the fingers as the person swallows. Need Online Assistance?