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 ...
The human body is maintained at 37°C as this ... Enzymes work inside and outside cells, for instance in the digestive system where cell pH is kept at 7.0 to 7.4. Cellular enzymes will work ...
The digestive system of the human body starts from the mouth and ends at the anus. The function of the digestive system begins immediately with the sight and smell of food substances. Physically ...
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 into mitochondria. There is a detailed ...
Two comb jellies can merge their digestive and nervous systems and even sync their bodily functions, according to new research. The discovery could have implications for human medicine Alexa ...
Brain tissue is among the most energetically costly in the body, and as a result, larger-brained mammals require more energy to support brain growth and maintenance. Exactly which biological changes ...
our digestive system contains microbiota (bacteria, fungi, viruses, and other microorganisms) that help support energy harvesting, digestion, and immune defense. “The human gut microbiota is ...
In 1972, biochemist Thomas Luckey estimated that each gram of human feces contained one hundred billion bacteria, and that the digestive system held about 2.2 pounds (1 kg) of them. By multiplying and ...