Is it possible for a whale to swallow a human

A little girl was talking to her teacher about whales. The teacher said it was physically impossible for a whale to swallow a human because even though a whale is a very large mammal, its throat is very small. The little girl stated that Jonah was swallowed by a whale. The teacher reiterated that a whale could not swallow a human, it was impossible. The little girl said, "When I get to heaven I will ask Jonah".
The teacher asked, "What if Jonah went to hell?"
The little girl replied, "Then you ask him!"