The gland that is present close to Trachea

Step 1: Analyze the question The question asks which gland sits close to the trachea (windpipe), in the neck region.

Step 2: Explain the concept Glands are located in different parts of the body:

• Pancreas: in the abdomen, behind the stomach, close to the duodenum.
• Liver: in the upper right abdomen, under the diaphragm.
• Adrenal (suprarenal): sits on top of each kidney.
• Thyroid: in the neck, in front of and around the upper part of the trachea, just below the larynx (voice box).

Step 3: Solution The thyroid gland is a butterfly-shaped endocrine gland with two lobes, one on each side of the trachea, joined by a narrow band called the isthmus. This puts it directly against the windpipe. It produces thyroxine, which controls metabolic rate. A lack of iodine can cause it to swell, giving a condition called goitre in the neck.

The pancreas, liver and adrenal glands are all in the abdomen, far from the trachea.

Step 4: Answer The correct option is D. Thyroid.

Tip: Think "Thyroid = Throat." The thyroid is in the neck wrapped around the trachea, while the adrenals sit on the kidneys ("ad-renal" means "near the kidney").