Which of the following is a true statement regarding air pressure variances? a) Air is drawn through the trachea and bronchi into the alveoli during inspiration. b) Air flows from a region of lower pressure to a region of higher pressure during inspiration. c) The thoracic cavity becomes smaller during inspiration. d) The diaphragm contracts during inspiration.
Which of the following is a true statement regarding air pressure variances?
a) Air is drawn through the trachea and bronchi into the alveoli during inspiration.
b) Air flows from a region of lower pressure to a region of higher pressure during inspiration.
c) The thoracic cavity becomes smaller during inspiration.
d) The diaphragm contracts during inspiration.