How is neurohumoral regulation of the separation of gastric juice in the human body?

1) Nervous regulation: – conditioned reflexes – the release of juice by the look or smell of familiar food, thoughts about food, the onset of eating time, etc.
2) Nervous regulation: – unconditioned reflexes – secretion of gastric juice when exposed to food on the receptors of the oral cavity (chewing) and receptors (during mechanical irritation) of the walls of the stomach.
3) Humoral regulation: – when eating foods rich in active substances (broths and salads) begin to be absorbed in the stomach, which ensures increased secretion of gastric juice