0
Digestive System
Digestive System is the category for questions regarding the breakdown and absorption of food-stuffs in our alimentary canal. Questions about the stomach and intestines can be included in this category.
7,599 Questions
Can appendix be located on left side?
The appendix is located on the left hand side for children under three.
You breathe in air through your lungs. This air travels to the alveoli in your lungs. There are capillaries in your alveoli. The oxygen in the air gets absorbed by the body while the waste product (CO2), gets expelled from your body. The digestive system breaks your food down into a substance small enough to be absorbed by the body. Glucose which is one substance the food is broken down into travels, as well as the oxygen, through the circulatory system to the cells. The oxygen and glucose react in the cells to make energy.
That is how they all work together.
------------------------------------------------
Just to reword that answer:
When you breathe in air (inhale) you are also breathing in oxygen. That oxygen travels down into your lungs and into small air sacs called alveoli. These small air sacs are surrounded by capillaries carrying oxygen-poor blood. This blood has carbon dioxide in it which is a waste product produced during cell activities.
Now, when this oxygen is in your alveoli the oxygen diffuses through the thin membranes of the alveoli into the surrounding capillaries. Then the carbon dioxide from the blood in the capillaries diffuses into the alveoli. When you exhale the carbon dioxide in the alveoli are released into the air. That was the respiratory part--now the circulatory system comes into play.
That blood which is now oxygen-rich needs to be circulated throughout the body because your body cells need the oxygen to perform its cell activities. And so, blood is transported through the capillaries to the many cells in your body. These capillaries do not only circulate oxygen rich blood-it also circulates glucose. After cells use this oxygen and glucose and carbon dioxide is released as a waste product into the blood. That blood is brought to the lungs through the superior and inferior vena cava, into the right atrium, through the right ventricle, through the semi-lunar valves, and into the lungs. It is here where the oxygen-poor blood full of carbon dioxide becomes oxygen-rich with the help of the alveoli and such.
Here we come to a full close between the respiratory and circulatory system.
--Hope that helps :)
Where does the greatest amount of nutrients absorbed take place?
Even though some digestion takes place in the mouth (starch) and the stomach (protein), it is actually the small intestine where most of the food we eat is broken down, and also where virtually all the absorption occurs.
Does the protein digestion begin in the stomach and is it completed in the small intestine?
Yes. The digestion of protein begins in the stomach with the enzyme pepsin and ends in the small intestine using enzymes secreted by the pancreas. Once the enzymes have broken the proteins into their amino acids, they can then be absorbed by the epithelial tissue lining the small intestine.
How long does it take for your stomach to break down food?
It depends if you eat a lot in a little amount of time, normally 20 to 25 minutes if you eat a lot, but 10 to 15 if you don't eat too many snacks in one amount of time.
\ˌper-ə-ˈstȯl-səs, -ˈstäl-, -ˈstal-\
pluralperi·stal·ses\-ˌsēz\
Definition of PERISTALSIS: successive waves of involuntary contraction passing along the walls of a hollow muscular structure (as the esophagus or intestine) and forcing the contents onwardWhat are the food molecules absorbed through the walls of the small intestines transported by?
plasma
How long does it take for a mushroom to digest?
Our bodies have trouble digesting cellulose also known as dietary fiber, which is a major component of mushrooms. In some instances mushrooms are not fully digested.
How long do you have to wait after eating to shower?
Digestion requires good blood flow and digestion generates heat. If one takes a warm shower, does exercise or goes for a swim, the blood needs to be diverted to the skin surface for cooling purposes. This interferes with digestive process and you can end up having a stomach ache, can faint or even have a heart failure if you are weak.
Though most people would see no ill effects having showered right after a meal, but weak or old people can have a different reaction. So a healthy habit is to wait for about 30 mins after a meal before taking a shower.
The reason someone would faint would be because there is not enough blood flowing to the brain. Digestion requires a high percentage of blood and when you take a warm shower the blood vessels dilate in order to cool down the body by releasing the heat from blood to the skin. More blood flows through those vessels and since so much blood is being used elsewhere the brain may be lacking blood and the bodys reaction to this is to faint because fainting will keep the body level and the blood will flow evenly. This may not affect a lot of people but people with health concerns and also people with bad circulation may have problems.
What acid is involved in human digestion?
One role of acid in the process of digestion is to neutralize enzymes. Pepsin and hydrochloric acid are released into the partially digested food which helps to break it down even further before moving into the intestines.
Does the pancreas manufacture enzymes to digest all energy-yielding nutrients in the diet?
Yes. It also produces nucleases and proteases.
What cell contains digestive enzymes for breaking down things?
i think u mean the process of catabolism wherethe cells are broken down from complecated (forgot the word) to a simple (same word as the one forget)usualy realesing energy im tacking this stuf in 9th grade igcse and wasent in the mood to check my copybook trust me i got a 22 out of 25
What would happen if the circulatory system and the digestive system did not work together?
you will die
Which type of enzyme digests fat and what does it digest fat into?
Proteases are enzymes that digest proteins. Examples of proteases that are used in the human body include Pepsin (an enzyme in the stomach), and Trypsin (an enzyme in the small intestine) which digest proteins into amino acids, or polypeptide chains composed of amino acids.
Which is the digestive juice that only acts on proteins?
lipase breaks down fat into glycerol and fatty acids
What two organs use both mechanical and chemical digestion?
Both the mouth and the stomach perform mechanical and chemical digestion.
What is the role of the water in digestion?
It doesn't. It gets stored in the bladder and gets turned into waste.
What function does digestive tract perform?
The digestive system breaks down ingested food into usable nutrients. It also provides a site where these nutrients are absorbed into the circulatory system for transport to all body cells. Lastly, it eliminates solid waste -- undigested food.
What happens to the digested product after digestion is completed?
the remaining food is now called faeces and excreted out.
What is the upper area of the small intestine called?
The lower ten meters of the small intestine is called the ileum, and is 'terminated' at the ileocecal valve.
The large intestine also is composed from several parts.
