My X-Ray Swallows

Watch a video of a person swallowing a dense liquid that is visible by x-ray. Refer to the labeled image of the x-ray in the related files of this step for further clarification. Look carefully to spot the epiglottis, the thin gray shadow slanting up to the right in the still shot image. The trachea is pale because it’s filled with air; the esophagus, with a bit of food visible, is behind it.

Now that you have an introductory understanding of the digestive system, what stands out to you when watching this video? Does this captivating visualization pose any new questions about the digestive tract? Discuss below with your peers!