Which of the following stimulates the secretion of gastric juice:
1.  Gastrin
2.  Enterogasterone
3.  Secretin
4.  Hepatocrinin

Duodenum has characteristic Brunner's glands which secrete two hormones called:

1. Secretin, Cholecystokinin

2. Prolactin, parathormone

3. Extradiol, progesterone

4. Kinase, estrogen