Some mucus is for cell membrane development to protect the body. Another reason may be due to common cold you could have swallow mucus.
Their esophagus is a part of their digestive system. It is lined with mucus so that the food they eat can easily get to their main digestive system.
No part of the digestive system is dry and stinky. The colon is stinky because microbes are breaking down your undigestible food. The entire digestive system is lubricated with mucus and so is not dry.
it has so much mussles and things in the digestive system its awesome!
Yes, but they're not identical. The mucus lining the respiratory system is used as a dirt (well, dust) trap. The mucus lining the digestive system acts as a barrier to the digestive juices (so that you don't try to digest yourself [see 'ulcers' as example of failure]).
The stomach lining is covered in mucus so that the protein-digesting pepsin won't eat away at the muscular lining. However, if the mucus wears off, you can get ulcers in the stomach.
In the stomach, the stomach acid is there to digest protein. Your stomach, as is mucus, is made of protein. So, your stomach produces mucus to sacrifice instead of the stomach muscle/protein. The mucus is continually being digested by the acid, but it is also continuously being produced at the same rate as its digestion. The mucus also protects the inner lining of the digestive system against abrasive objects you may have eaten. Lubrication? Need I say more than that mucus is slippery so the food slides more easily.
Yes, but only if you have hard jostling of the digestive system on a daily basis. A perfect example is of John Wheeler, his digestive system is jostled every night, and he can only intake so much of Ponderosa Yancy's kin.
The stomach is an organ in the digestive system.
The relation between the circulatory system and the digestive system is that the digestive system makes energy so the energy goes to the heart and that is what makes it pump.
Food does not go 'Inside' of your digestive system. It remains 'Outside' of the digestive system. So most of the digestion is extracellular. So from mouth to anus the entire digestive system is connected to the 'Exterior' and is not technically and immunologically 'Inside' your body.
the digestive system.
a closed digestive system is when your digestive system is blocked and it stops the food that you eat from getting into your blood stream so the food you eat won't do you any good