An egg cell can't swim. Ciliated cells in the fallopian tube wave tiny hairs to gently push it along.
Drag to turn it around. Use the buttons to zoom in and try things from the lessons.
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The fallopian tubes connect the ovaries to the uterus, or womb. Their inside is lined with a carpet of cells.
Many of these are ciliated cells. Each one is tall, and its top is covered with lots of tiny hairs called cilia.
The egg cell is one of the biggest cells in your body. It is about the width of a hair, just big enough to see as a tiny dot.
The cilia all beat together, in waves, toward the uterus. It's like a crowd passing a beach ball over their heads.
If an egg cell and a sperm cell join, a baby can start to grow, and the cilia help move it to the uterus.
Press Beat the cilia on the 3D model, then press Move the egg.