The digestive tract is the tube that extends from the mouth to the anus, and it consists of the (1) mouth, (2) pharynx, (3) esophagus, (4) stomach, (5) small intestine, and (6) large intestine. The accessory organs include the (1) teeth, (2) tongue, (3) salivary glands, (4) liver, (5) gallbladder, and (6) pancreas.ccessory organs The accessory organs include the â (1) teeth, â (2) tongue, â (3) salivary glands, â (4) liver, â (5) gallbladder, and â (6) pancreas. Figure 26.1Illustration showing the design and structures of the digestive system.
Nutrients such as omega-3 fatty acids, lutein, zinc, and vitamins C and E might help ward off age-related vision problems such as macular degeneration and cataracts, studies show. Regularly eating these foods can help lead to good eye health 1  : Green, leafy vegetables such as spinach, kale, and collards. 2  Salmon, tuna, and other oily fish. 3  Eggs, nuts, beans, and other non-meat protein sources. 4  Oranges and other citrus fruits or juices.
5. Pineapple is important for keeping your sight. You have probably heard that carrots keep your eyes bright and healthy (read here for a whole list of foods that help maintain eyesight),but research suggests that fruit is even more important for the health of your eyes.t offers exciting health benefits that can help improve many peopleâs quality of life. Read on to find out 10 reasons to eat pineapple... Researchers are just beginning to study pineapple nutrition, but the outlook so far suggests this common fruit delivers many healthy pluses to the average human body.