The digestive system is the series of tubelike organs that convert our meals into body fuel. There are about 30 feet (9 meters) of these convoluted pipeworks, starting with the mouth and ending ...

It can take six hours for the small intestine to do its job. The nutrients are sucked from the inner surface of the small ...

videoHuman circulatory and digestive system This short film offers a look at respiration and a tour around the circulatory system and digestive system in the human body, through blood vessels and ...

Haemoglobin is bulky, so there's not much space for anything else inside the red blood ... a tour around the circulatory system and digestive system in the human body, through blood vessels ...

Gut microbiota—the collection of bacteria, viruses, and fungi that live in our intestines—plays a pivotal role in maintaining ...