What is facilitated by the ciliary movement in the human body?

What is facilitated by the ciliary movement in the human body?
  1. Removal of dust particles and foreign substances inhaled
  2. Passage of ova through the female reproductive tract
  3. Movement of limbs, jaws, tongue, etc.
  4. Both A) and B)

Solution

The coordinated movements of cilia in the trachea help in removing dust particles and some of the foreign substances inhaled along with the atmospheric air, and the passage of ova through the female reproductive tract is also facilitated by the ciliary movement.

Asked in: NCERT

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