Chemical Coordination And Integration Question 26
Question: Secretin and cholecystokinin are digestive hormones. They are secreted in:
Options:
A) Pyloric stomach
B) Duodenum
C) Ileum
D) Oesophagus
Show Answer
Answer:
Correct Answer: B
Solution:
[b] Hormones are non-nutrient chemicals which act as intercellular messengers and are produced in trace amounts.
Gastrointestinal tracts secrete four major peptide hormones ? gastrin, secretin, cholecystokinin (CCK) and gastricinhibitory peptide (GEP) while juxtaglomerular cells of kidney secrete erythropoietin, a peptide hormone.
Releasing and inhibitory hormones are produced by hypothalamus.
Neurohypophysis or posterior pituitary is under the direct neural regulation of the hypothalamus.
BETA
