How Many Holes Does a Human Have?

Summary by Krater

Michael Stevens explores the topology of holes in the human body, examining how various bodily orifices and passages count mathematically and concluding that the human body has millions of blind holes and seven through-holes.

From the video

Answers: How many holes does the human body have?

• topology of the human body
• blind holes vs through-holes
• homeomorphisms
• nasal and ear anatomy
• lacrimal puncta

What it concludes

• The human body has millions of blind holes and seven through-holes.