In humans, several digestive glands are associated with the alimentary canal:

1. Salivary Glands: Produce saliva, containing enzymes like amylase that begin starch digestion.
2. Gastric Glands: Located in the stomach, they secrete gastric juice, including hydrochloric acid and pepsinogen, which aid in protein digestion.
3. Pancreas: Produces pancreatic juice containing enzymes like lipase, proteases, and amylase for digestion of fats, proteins, and carbohydrates.
4. Liver: Produces bile, stored in the gallbladder, essential for fat emulsification and absorption.
5. Intestinal Glands: Secrete intestinal juices containing various enzymes for further digestion and absorption of nutrients.