Final answer:
The secretions of the eccrine sweat glands consist primarily of 99% water along with sodium chloride, and they contain trace amounts of wastes, lactic acid, and vitamin C.
Step-by-step explanation:
The secretions of the eccrine glands are 99% water, sodium chloride, and trace amounts of wastes, lactic acid, and vitamin C. Eccrine glands are primarily involved in thermoregulation and maintaining homeostasis by regulating body temperature through the release of hypotonic sweat. This type of sweat is produced all over the skin's surface, particularly on the palms, soles of the feet, and forehead. It is composed mostly of water, with some salt, antibodies, traces of metabolic waste, and dermicidin, an antimicrobial peptide. The sweat plays a crucial role in excreting excess electrolytes like sodium and chloride, as well as metabolic wastes such as ammonia, urea, and, in the case of alcohol consumption, alcohol.