GENERAL HISTOLOGY

Detailed explanation-1: -Brown adipose tissue, or brown fat, is one of two types of fat that humans and other mammals have. Its main function is to turn food into body heat. It is sometimes called “good” fat. Human newborns and hibernating mammals have high levels of brown fat.

Detailed explanation-2: -Brown fat is mostly found in newborns. It’s arranged in little pockets along the shoulders and between the shoulder blades. It makes up about 5 percent of an infant’s total body mass. People have less of it as they age, but researchers now believe that some people maintain brown fat deposits into adulthood.

Detailed explanation-3: -Brown adipose tissue is the major site of thermogenesis in the newborn and is especially prominent in the mammalian fetus. The largest accumulations of brown adipose tissue envelop the kidneys and adrenal glands, and smaller amounts surround the blood vessels of the mediastinum and neck.

Detailed explanation-4: -Brown adipose tissue is especially abundant in newborns and in hibernating mammals. It is also present and metabolically active in adult humans, but its prevalence decreases as humans age. Its primary function is thermoregulation.

Detailed explanation-5: -Brown adipose tissue (BAT) is a unique thermogenic tissue in mammals that rapidly produces heat via nonshivering thermogenesis. Small mammalian hibernators have evolved the greatest capacity for BAT because they use it to rewarm from hypothermic torpor numerous times throughout the hibernation season.