Ivan Pavlov Quote: No.19
- 19
The digestive canal represents a tube passing through the entire organism and communicating with the external world, i.e. as it were the external surface of the body, but turned inwards and thus hidden in the organism. Ivan Pavlov | Refcard PDF ↑
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- Name:
- Ivan Pavlov (random)
- Books & Videos:
- Ivan Pavlov Books & Videos
- Type:
- Psychologist
- Nationality:
- Russian
- Birth Date / Year:
- September 14, 1849
- Death Date / Year:
- February 27, 1936
