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Which type of tissue forms the upper layer of the epidermis?
Thyroid Follicles
Microscopic, spherical sacs found in the thyroid gland, responsible for the production and storage of thyroid hormones.
Thyroxine-binding Protein
A plasma protein that transports thyroxine, a hormone responsible for regulating metabolism, throughout the bloodstream.
Parathyroid Hormone
A hormone secreted by the parathyroid glands that regulates calcium levels in the blood.
Serum Levels
The concentration of substances in the clear liquid portion of the blood after coagulation.