Glands of mixed secretion simultaneously perform the functions of both exocrine and endocrine glands, i.e. digesting enzymes and hormones directly into the bloodstream. The pancreas is a mixed secretion gland. It secretes pancreatic juice, the enzymes of which break down proteins and carbohydrates, as well as hormones: insulin for regulating blood sugar, helps glucose uptake, turns glucose into glycogen, and glucagon, which has the opposite effect, turning glycogen into glucose.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.