Question

question 18 (mandatory) (1 point) hairlike structures that move particles upward to the pharynx for coughing or swallowing are called alveoli. bronchioles. cilia. cartilage rings. neurons.

Explanation:

Cilia are hair - like structures in the respiratory tract that move mucus and trapped particles upward to the pharynx for coughing or swallowing. Alveoli are air - sacs for gas exchange, bronchioles are small airways, cartilage rings support airways, and neurons are nerve cells.

Answer:

C. cilia