Stimulates ecl cells to secrete histamine which stimulates hcl release from parietal cells. ghrelin secretin gastrin cck

The answer is Gastrin.  The Main secretion of pyloric cells are Mucus from mucous cells are Gastrin from gastrin cells which stimulates production of HCl.  Ach, Gastrin stimulate ECL cell and this one secrete Histamine then stimulating Parietal cell. Cephalic Phase: 40% Mechanoreceptors and chemoreceptors in oral and nasal cavity.  Engages neural responses.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands