(d) Thyroid gland
The thyroid gland is part of the endocrine system and produces thyroid hormones, which deficiency can cause goitre disease.
Cells producing thyroid hormones extracts and absorbs iodine from the blood and incorporate them into the thyroid hormones.
The pituitary gland produces a hormone called thyroid-stimulating hormone.
The thyroid-stimulating hormone tells the thyroid gland how much hormones
to produce and secrete.
The pancreatic juice is a secreted by the pancreas, which is important to digestion.
Pancreatic juice contains trypsin and chymotrypsin to digest proteins amylase for the digestion of carbohydrates and lipase to break down fats.
Thymosin hormone is secreted by the thymus. Its function is to stimulate the production of T cells, which are an important part of the immune system.
