Adipose tissue
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Adipose tissue
Adipose tissue is a specialized connective tissue that plays a critical role in energy storage, insulation, and cushioning of the body. It is primarily composed of adipocytes, which are cells that store fat in the form of triglycerides. Adipose tissue is found throughout the body and is classified into two main types: white adipose tissue and brown adipose tissue.
Structure[edit | edit source]
Adipose tissue is a type of connective tissue that consists of adipocytes, fibroblasts, macrophages, and endothelial cells. The adipocytes are the predominant cell type and are responsible for storing energy in the form of fat. These cells are characterized by a large lipid droplet that occupies most of the cell volume, pushing the nucleus to the periphery.
White Adipose Tissue[edit | edit source]
White adipose tissue (WAT) is the most abundant form of adipose tissue in the body. It serves as the primary site for energy storage and is involved in the regulation of metabolism. WAT is distributed throughout the body, with significant deposits in the subcutaneous layer, around internal organs, and in the abdominal region.
Brown Adipose Tissue[edit | edit source]
Brown adipose tissue (BAT) is less abundant than white adipose tissue and is primarily involved in thermogenesis, the process of heat production. BAT contains a higher number of mitochondria, which gives it a brown color. It is mainly found in newborns and in small amounts in adults.
Function[edit | edit source]
Adipose tissue serves several important functions in the body:
- Energy Storage: Adipose tissue stores energy in the form of triglycerides, which can be mobilized during periods of energy deficit.
- Insulation: It provides thermal insulation, helping to maintain body temperature.
- Cushioning: Adipose tissue acts as a cushion, protecting internal organs from mechanical damage.
- Endocrine Function: Adipose tissue secretes hormones such as leptin, adiponectin, and resistin, which play roles in appetite regulation, insulin sensitivity, and inflammation.
Clinical Significance[edit | edit source]
Excessive accumulation of adipose tissue can lead to obesity, which is associated with various health conditions such as type 2 diabetes, cardiovascular disease, and metabolic syndrome. Abdominal obesity, in particular, is a significant risk factor for these conditions.
Related pages[edit | edit source]
Gallery[edit | edit source]
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Fat mouse
Diagram of adipose tissue
Gray's anatomy illustration of adipose tissue
Yellow adipose tissue in paraffin section
Body fat meter
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