Which one of the following hormones inhibits gastric secretion
Gastrin
Secretin
Enterogastrone
Cholecystokinin
Oxytocin helps in
The mineral element essential for the formation of insulin is
Which hormone causes dilation of blood vessels, increased oxygen consumption and glucogenesis ?
Which one of the following flows directly into the blood from seat of its production to act on an organ away from it
....... Plays a very important role in the regulation of a $24$ hours rhythm of our body