Steroids - synthesized from cholesterol. jefka228. Gravity. Synthesis of the amino acid–derived T 3 and T 4 hormones requires iodine. The numerous thyroid follicles form the secretory units of the thyroid gland. It has two lobes that are connected by a narrow isthmus. Thyroid Gland – Introduction The thyroid gland contains two main types of cells: follicular cells that produce thyroxin and C cells that produce calcitonin.

Flashcards. Test. Anatomical Location. The thyroid gland is located dorsolateral to the trachea, close to the larynx. Digital Histology. An other hormone produced by the thyroid gland, calcitonin, is produced in response to elevated blood calcium levels. It lies behind the sternohyoid and sternothyroid muscles, wrapping around the cricoid cartilage and superior tracheal rings. About; Credits; Contact; Hide Main Menu » Organs & Systems » Endocrine » Organs » Thyroid » Thyroid 1. Terms in this set (9) Chemical classifications of hormones: Peptides - from 3 amino acids to large proteins. Amines - derivatives of tyrosine (amino acid). The thyroid gland has lobular organization. STUDY. Created by. The thyroid gland is located in the anterior neck, spanning between the C5 and T1 vertebrae.It is an endocrine gland, divided into two lobes which are connected by an isthmus.It is said to have a butterfly shape. Histology of Thyroid Gland. A thin fibrous capsule with blood vessels, lymphatics, and nerves, most prominent at the poles, encloses the thyroid. The thyroid hormones triiodothyronine (T 3) and thyroxine (T 4) are produced and secreted by the thyroid gland in response to thyroid-stimulating hormone (TSH) from the anterior pituitary. PLAY. Learn.
Near the thyroid gland and embedded in the same connective tissue capsule is the parathyroid gland. The effects of the hormones it produces can be seen throughout all systems in the body. Match. Thyroid hormones are able to diffuse freely across cell membranes.
Write. It consists of two lobe-one on each side of junction between laryngotrachea. The thyroid gland is an endocrine organ located in the neck that participates in a myriad of systemic processes. Thyroid gland. Thyroid gland is located in neck, anterior to trachea. The thyroid, located in the anterior neck, consists of two major lobes connected by a thin isthmus. It consists of two lobe-one on each side of junction between laryngotrachea. The thyroid regulates basal metabolic rate by secretion of thyroid hormones stored in thyroid follicles. Thyroid hormone is produced in response to elevated pituitary TSH levels. Spell. The lobes are connected by a thyroid tissue called Isthmus.