In a healthy person, most of the particles that are inhaled into the respiratory system are trapped in the mucus and moved by cilia to the pharynx (toward the digestive system).
pass through the alveoli into the circulatory system, where they are engulfed by white blood cells.
are caught on the vocal cords.
are trapped in the sinuses.
are trapped in the mucus and moved by cilia to the pharynx (toward the digestive system).
You might also like to view...
Each kidney contains more than a million "functional units" called ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is not attached to the vertebral arch?
A. transverse processes B. spinous process C. superior articulating process D. inferior articulating process E. They are all attached to the vertebral arch.
Cerebrospinal fluid comes into direct contact with the neuronal and glial cells only at one location within the brain
Indicate whether the statement is true or false
All of the following are true about neurons EXCEPT that they ________
A) have no influence on homeostasis B) receive electrical signals C) interpret electrical signals D) produce electrical signals