1. Tardigrade
  2. Question
  3. Biology
  4. Read the following statements and selectthe correct option Statement 1: Deglutition starts as a reflex and then continues by voluntary action Statement 2: Oesophagus has smooth muscles in the beginning and striated muscles in the rest of its wall

Q. Read the following statements and selectthe correct option
Statement 1 : Deglutition starts as a reflex and then continues by voluntary action
Statement 2 : Oesophagus has smooth muscles in the beginning and striated muscles in the rest of its wall

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Solution:

Deglutition (swallowing) starts as a voluntary action in the mouth and then continues as an involuntary action. Striated muscle surrounds the upper one third of the oesophagus and smooth muscle surrounds the lower twothirds.