Final answer:
Sweat is secreted by the sudoriferous glands, which are spread throughout the human body and play a crucial role in temperature regulation through the production of sweat, consisting mostly of water and salts.
Step-by-step explanation:
Sweat is secreted by sudoriferous glands. These glands are responsible for producing sweat, which is a mechanism that our body uses to regulate temperature through evaporative cooling. The skin of mammals includes several types of secretory glands. Among them, sudoriferous glands (also known as sweat glands) develop from epidermal projections into the dermis and can be classified into two types: eccrine glands and apocrine glands.
Eccrine glands are distributed throughout the body and produce a watery sweat primarily made of water and salts, and they are active in thermoregulation. The substances secreted by apocrine glands, which are commonly associated with hair follicles, contribute to body scent. On the other hand, sebaceous glands release sebum, a lipid mixture that lubricates the hair and skin, while the mammary glands produce milk for feeding young mammals. Ceruminous glands are specialized exocrine glands in the ear canal that produce earwax (cerumen).