Tag: the nervous system

Questions Related to the nervous system

Pavlov's pouch is

biology the nervous system the reflex action reflex action and reflex arc basic reflex action and reflex arc

  1. An artificial stomach

  2. A bag containing digestive enzymes

  3. A bag containing food

  4. Opened stomach of a dog

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Correct Option: D
Explanation:
  • Pavlov's Pouch is an artificially created pouch for experimental purposes.
  • It was surgically created by a physiologist Ivan Petrovich Pavlov.
  • It was created to study the physiology of the digestive tract.
  • It was also used to study the principles of secretion of the fundal glands.
  • It is a small portion of the stomach which is separated from the main stomach of a dog.
  • So, the correct answer is 'Opened stomach of a dog'.

The scientist who found secretion of gastric juice to be under control of nervous system was

biology the nervous system the reflex action reflex action and reflex arc basic reflex action and reflex arc

  1.  Ernest Starling

  2. Reamur

  3. Spallanzani

  4. Both B and C

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Correct Option: A
Explanation:

  • Secretin was the first hormone to be identified. In 1902, William Bayliss and Ernest Starling were studying how the nervous system controls the process of digestion.
  •  It was known that the pancreas secreted digestive juices in response to the passage of food (chyme) through the pyloric sphincter into the duodenum. Hence, The scientist who found secretion of gastric juice to be under control of the nervous system was Ernest Starling.
So, the correct answer is 'Ernst starling'.