Salivation when hungry is a _________ reflex and watering of mouth at the sight of food is a ______________ reflex.
2 points
(a) Natural, acquired
(b) Acquired, natural
(c) Conditioned, inborn
(d) Inborn, natural
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Answer:
•Mouth watering occurs due to reflex action.
•It is a sign of healthy body.
•Mechanism responsible for the action is -
•When smell or sight of food occurs, the sensory organs signal the brain.
•Signals reaches to medulla oblongata in brain.
•The signals produced from the organ, cause release of neurotransmitters like acetylcholine.
•These signal cause release of saliva from mouth.
•Saliva is the first step in the process of digestion after eating.
•Saliva contains enzyme - salivary amylase, which digests carbohydrates in mouth.
•Thus, it is released on sight of smell of food
Explanation:
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Answer:
Natural , acquired
Explanation:
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