Social Studies, 26.03.2020 22:36 monai2005
Koopmans (1981) transplanted an extra stomach and length of intestine into rats and then joined the major arteries and veins of the implants to the recipients’ circulatory systems (see Figure 12.12). Koopmans found that food injected into the transplanted stomach and kept there by a noose around the pyloric sphincter decreased eating in proportion to both its caloric content and volume. Because the transplanted stomach had no functional nerves, the gastrointestinal satiety signal had to be reaching the brain through the blood. And because nutrients are not absorbed from the stomach, the bloodborne satiety signal could not have been a nutrient. It had to be some chemical or chemicals that were released from the stomach in response to the caloric value and volume of the food—which leads us nicely into the next subsection.
Answers: 2
Social Studies, 22.06.2019 03:30
In russia, after the soviet union collapse, influential retained power by acquiring large numbers of , so the ruling class gained power in place of power.
Answers: 2
Social Studies, 22.06.2019 17:30
The american public was excited by the invention of the railroad system. true false
Answers: 1
Social Studies, 22.06.2019 18:50
4. discuss three characteristics of postmodern society? how does postmodern society differ in these characteristics than pre-industrial or modern societies?
Answers: 1
Koopmans (1981) transplanted an extra stomach and length of intestine into rats and then joined the...
Social Studies, 28.07.2019 02:00
Mathematics, 28.07.2019 02:00
History, 28.07.2019 02:00
Physics, 28.07.2019 02:00
Mathematics, 28.07.2019 02:00
Chemistry, 28.07.2019 02:00