Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
anatomical anatomy back biology body care cartilage cartoon chart diagram disease education educational endocrine endocrinologist flat front function gland health healthcare healthy hormone human hyperthyroidism hypothalamus hypothyroidism illustration larynx left medical neck organ parathyroid right scheme science secretion sickness silhouette structure style symbol system throat thyroid trachea vector view