ENDOCRINE ORGANS AND RESPIRATORY SYSTEM
PARATHYROID
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is located anterior to the trachea
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It is inferior to the larynx
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It has four lobes
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The medial region is called the isthmus
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Detailed explanation-1: -There are two main parts of your thyroid: the two halves (lobes) and the middle of the thyroid that connects the two lobes (thyroid isthmus). Your thyroid is made of thyroid follicle cells (thyrocytes), which create and store thyroid hormone (mainly T3 and T4), and C-cells, which secrete the hormone calcitonin.
Detailed explanation-2: -Thyroid Gland It consists of two lobes, one on each side of the trachea, just below the larynx or voice box. The two lobes are connected by a narrow band of tissue called the isthmus. Internally, the gland consists of follicles, which produce thyroxine and triiodothyronine hormones. These hormones contain iodine.
Detailed explanation-3: -The thyroid gland is divided into two lobes that are connected by the isthmus, which crosses the midline of the upper trachea at the second and third tracheal rings.
Detailed explanation-4: -Your body controls your thyroid hormone (T3 and T4) levels through a complex feedback loop. Your hypothalamus releases thyrotropin-releasing hormone (TRH), which triggers your pituitary gland to release thyroid-stimulating hormone (TSH), which stimulates your thyroid to release T3 and T4.