An ultrasound is a painless procedure that uses sound waves to generate images of the inside of your body. Your doctor will often use an ultrasound to create images of a fetus during pregnancy. A thyroid ultrasound is used to examine the thyroid for abnormalities, including:
A doctor who specializes in nuclear imaging will evaluate the images and results of your thyroid scan. Your results will be sent in a report to your doctor. A normal thyroid scan would show no abnormalities in the size, shape, and location of the thyroid gland. Your thyroid will have an even green color on the image.
Ultrasound normal thyroid gland has an homogenous appearance, the capsule may appear as a thin hyperechoic line each lobe normally measures 4 length: 4-7 cm volume (excluding isthmus, unless its thickness is >3 mm) 6 10-15 mL for females
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The thymus gland has an important role in immune function. One of its main secretions is the hormone thymosin. Thymosin stimulates the maturation of T cells, which are derivatives of the white blood cells that circulate our system. T cells “kill” or are cytotoxic to damaged cells.
Cells in the thymus gland (such as epithelial cells) also have receptors through which other hormones can regulate its function. The mature T cells derived have a few major roles. T cells are part of the adaptive immune system, in which each T cell has been trained to recognize a particular antigen.
The thymus gland may produce small amounts of some hormones produced in other areas of the body, such as melatonin and insulin. Cells in the thymus gland (such as epithelial cells) also have receptors through which other hormones can regulate its function. The mature T cells derived have a few major roles.
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The Pituitary Gland: Anatomy & Function of the Master Gland. Weighing less than one gram and measuring a centimeter in width, the pituitary is often called the “master gland” since it regulates the secretion of the body’s hormones. These substances when released by the pituitary into the blood stream have a dramatic and broad range…
Weighing less than one gram and measuring a centimeter in width, the pituitary is often called the “master gland” since it regulates the secretion of the body’s hormones.
Updated August 08, 2019. The pituitary gland is a small endocrine organ that controls a multitude of important functions in the body. It is divided into an anterior lobe, intermediate zone, and posterior lobe, all of which are involved in either hormone production or hormone secretion.
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The prostate is an important gland located between the penis and bladder. It sits just to the front of the rectum. The urethra, which carries urine from the bladder out of the body, runs through the center of this walnut-sized organ. Primarily, this gland serves the function of secreting fluid that nourishes sperm and keeps it safe. 1
The secretions of the gland, known as prostate fluid, is a part of the seminal fluid that is ejected during ejaculation. The prostate muscles will help eject the seminal fluid into the urethra. The muscles themselves weigh about twenty grams and surround the urethra just below the bladder.
This last prostate image shows the back view of the prostate gland. This perspective reveals the ampulla of the ductus deferens (the ductus carries sperm from the testes-balls to the prostate gland, adding semen from the ampulla) where more fluids are added from the seminal vesicles.
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5,601 adrenal gland stock photos, vectors, and illustrations are available royalty-free.
Adrenal glands sit atop the kidneys and are composed of an outer cortex and an inner medulla, which produce different types of hormones. Human endocrine system adrenal gland stock illustrations
The adrenal medulla is the inner portion of the suprarenal gland (adrenal gland). This portion secretes epinephrine and norepinephrine in times of stress. There are several diseases that may impact the functionality of the suprarenal gland (adrenal gland).
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