reflexes

1940s

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MCU of Ivan Pavlov speaking, narrator introduces him as music plays.…

1940s

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CU shot of baby birds in nest with mouths wide open. MS of parent birds…

1940s

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Camera zooms in on lake surrounded by trees, music plays. Narrator…

1940s

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Shot of doctor with glasses standing at the foot of young man’s bed.…

1940s

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Shot of doctors hands with mallet testing reflexes in young boys legs…