As long as food is present in the foregut, the threshold is raised by signals from distension receptors in that area. |
From the mouth, the esophagus leads to the foregut and then intestine, where digestion and absorption occur. |
The commencing heart, formed at this stage of two distinct tubes, is attached to the ventral side of the foregut. |
During its life cycle, Y. pestis colonizes the flea midgut and can form a biofilm in the proventricular valve in the foregut. |
Then, to turn that foregut into stomach tissue, they worked out you need to add a dash of retinoic acid. |
The foregut as defined here should be composed of ingesta and fish-derived material including digestive enzymes. |