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Thyroid gland follicle, TEM
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Thyroid gland follicle, TEM
Thyroid gland follicle. Coloured transmission electron micrograph (TEM) of a follicle from the thyroid gland. The follicle consists of a layer of epithelial cells (pink) around a central storage chamber. The cells produce the thyroid hormones tri-iodothyronine (T3) and thyroxine (T4) and secrete them into the central chamber where they are store as the glycoprotein thyroid colloid (brown). The follicle is surrounded by blood vessels (red), which transport the hormones around the body. Thyroid hormones regulate the bodys metabolism
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6452683
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Blood Vessels Colloid Endocrine Endocrinology Epithelial Epithelium False Colour Follicle Gland Glycoprotein Hormone Hormones Secretory Storing Thyroid Gland Thyroxine Transmission Electron Micrograph Transmission Electron Microscope Triiodothyronine False Coloured
EDITORS COMMENTS
This print showcases the intricate structure of a thyroid gland follicle, as seen through a transmission electron microscope (TEM). The false-colored image reveals the various components that make up this vital part of our body's endocrine system. At the center of the follicle lies a storage chamber, surrounded by a layer of pink epithelial cells. These specialized cells play a crucial role in producing and secreting two essential hormones: tri-iodothyronine (T3) and thyroxine (T4). These hormones are responsible for regulating our body's metabolism, ensuring it functions optimally. The fascinating aspect of this image is the presence of brown-colored glycoprotein called thyroid colloid. This substance acts as a reservoir for storing these important thyroid hormones within the central chamber. Surrounding the follicle are vibrant red blood vessels that serve as transportation routes, carrying these hormones throughout our body to where they are needed most. This photograph not only highlights the biological complexity and beauty found within our bodies but also emphasizes how interconnected systems work together seamlessly to maintain homeostasis. It serves as an invaluable resource for researchers studying endocrinology or anyone fascinated by human anatomy at its finest.
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