Answer
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Hint: Secretion in the human body is the production and release of a useful substance by a gland or cell. Cholecystokinin and duocrinin are the hormones which are secreted directly into the blood by endocrine gland.
Complete answer:
Cholecystokinin and duocrinin are hormones. The cholecystokinin stimulates the gallbladder and pancreas to release bile and enzymes.It stimulates the digestion of fats and proteins. The duocrinin facilitates the release of mucus from duodenal gland. These two hormones are secreted by the intestine.
Pancreas –The pancreas is an organ located in the abdomen. It plays an essential role in converting the food we eat into fuel for the body's cells. The hormones secreted by pancreas are insulin, glucagon. Thus, this is an incorrect answer.
Adrenal Cortex –Adrenal glands produce hormones Adrenaline that help regulate metabolism, immune system, blood pressure, response to stress and other essential functions. Thus, this is an incorrect answer.
Thyroid gland - The thyroid gland is a vital hormone gland which secretes thyroxine. It plays a major role in the metabolism, growth and development of the human body. Thus, this is an incorrect answer.
Cholecystokinin and duocrinin are secreted by the intestine.
Hence the correct answer is option ‘A’.
Note: The pituitary regulates the synthesis of hormones by the endocrine glands. The hormones are target specific and are transported to the target organ through blood. The cholecystokinin is released when the food reaches the duodenum (first part of the small intestine). The Duocrinin protects the duodenum from the acidic digestive enzymes secreted by the stomach.
Complete answer:
Cholecystokinin and duocrinin are hormones. The cholecystokinin stimulates the gallbladder and pancreas to release bile and enzymes.It stimulates the digestion of fats and proteins. The duocrinin facilitates the release of mucus from duodenal gland. These two hormones are secreted by the intestine.
Pancreas –The pancreas is an organ located in the abdomen. It plays an essential role in converting the food we eat into fuel for the body's cells. The hormones secreted by pancreas are insulin, glucagon. Thus, this is an incorrect answer.
Adrenal Cortex –Adrenal glands produce hormones Adrenaline that help regulate metabolism, immune system, blood pressure, response to stress and other essential functions. Thus, this is an incorrect answer.
Thyroid gland - The thyroid gland is a vital hormone gland which secretes thyroxine. It plays a major role in the metabolism, growth and development of the human body. Thus, this is an incorrect answer.
Cholecystokinin and duocrinin are secreted by the intestine.
Hence the correct answer is option ‘A’.
Note: The pituitary regulates the synthesis of hormones by the endocrine glands. The hormones are target specific and are transported to the target organ through blood. The cholecystokinin is released when the food reaches the duodenum (first part of the small intestine). The Duocrinin protects the duodenum from the acidic digestive enzymes secreted by the stomach.
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