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There are two types of adipose tissue: white adipose tissue (WAT) and brown adipose tissue (BAT), that are also known as white fat and brown fat respectively. Consequently, these two tissues are made up of two types of fat cells.
- White fat cells contain a large lipid droplet surrounded by a ring of cytoplasm. The nucleus is flattened and located on the periphery. The fat stored is in a semi-liquid state, and is composed primarily of triglycerides and cholesterol ester. White fat cells secrete resistin, adiponectin and leptin.
- Brown fat cells are polygonal in shape. Unlike white fat cells, these cells have considerable cytoplasm with lipid droplets scattered throughout. The nucleus is round, and, although eccentrically located, it is not in the periphery of the cell. The brown color comes from the large quantity of mitochondria. Brown fat is also known as “baby fat,” and is used to generate heat.
Areolar connective tissue is composed of adipocytes.
- Histology at Boston University 08201loa - "Connective Tissue: unilocular (white) adipocytes "
- Histology at Boston University 04901lob - "Connective Tissue: multilocular (brown) adipocytes"
Histology: connective tissue
- cs:Tuková buňka
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