Each lobe is filled with follicles that contain hormones the body needs to function.
There are also two types of cells that make up thyroid tissuefollicular cells and parafollicular cells.
These two cells are responsible for producing certain hormones that the thyroid gland then secretes into the bloodstream.
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Its also possible for lobes of the thyroid to be different sizes from one another.
Both T3 and T4 need iodine to get to be produced by the thyroid gland.
Once iodine makes its way to the thyroid, it gets incorporated into T3 and T4.
Getting bloodwork is always the first step and will help your healthcare provider decide if further testing is needed.
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Johns Hopkins Medicine.The thyroid gland.
2012;87(1):45-9. doi:10.1007/s12565-011-0115-9
Cleveland Clinic.Thyroid nodules.
Michigan Medicine.Thyroid hormone production and function.
National Institutes of Health Office of Dietary Supplements.Iodine: fact sheet for consumers.
National Institute of Diabetes and Digestive and Kidney Diseases.Thyroid tests.
