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The normal thyroid gland size on ultrasound varies depending on age, sex, and body mass index. The normal adult thyroid volume is approximately 10-15cc, with each lobe measuring about 4-6 cm in length and 2-3 cm in width. Each lobe’s anterior-posterior (AP) dimension is usually less than 2 cm.
The thyroid gland is a single midline endocrine organ in the anterior neck responsible for thyroid hormone production which lies in the visceral space completely enveloped by pretracheal fascia (middle layer of the deep cervical fascia).
An accurate evaluation of thyroid volume, in patients of all ages, is important for the correct diagnosis of a goiter and for sonographic monitoring of thyroid diseases.
The thyroid is a small gland, measuring about 2 inches (5 centimeters) across, that is located just under the skin in the neck. The two halves (lobes) of the gland are connected in the middle (called the isthmus), giving the thyroid gland the shape of a bow tie. Normally, the thyroid gland cannot be seen and can barely be felt.
The thyroid, or thyroid gland, is an endocrine gland in vertebrates. In humans, it is in the neck and consists of two connected lobes. The lower two thirds of the lobes are connected by a thin band of tissue called the isthmus (pl.: isthmi).
Your thyroid is made of thyroid follicle cells (thyrocytes), which create and store thyroid hormone (mainly T3 and T4), and C-cells, which secrete the hormone calcitonin. How big is the thyroid? Your thyroid is about 2 inches long.
The thyroid gland is part of the endocrine system (along with the adrenal glands, hypothalamus, pituitary, ovaries, and testes). The thyroid gland releases hormones into the bloodstream to control your metabolism, which is the primary way your body uses energy.
Two hormones of the thyroid gland, T4 (thyroxine) and T3 (triiodothyronine), help the body to produce and regulate the hormones adrenaline (also called epinephrine) and dopamine. The thyroid...
Anatomy Overview. The thyroid gland is divided into two lobes connected by the isthmus, which crosses the midline of the upper trachea at the second and third tracheal rings. In its anatomic position, the thyroid gland lies posterior to the sternothyroid and sternohyoid muscles, wrapping around the cricoid cartilage and tracheal rings.
The thyroid gland is an endocrine organ located in the neck that participates in a myriad of systemic processes. The effects of the hormones it produces can be seen throughout all systems in the body. Thyroid hormones are able to diffuse freely across cell membranes.