The _________prevents most inspired particles such as dust from reaching the lungs.     A. action of the epiglottis   B. ciliated mucous lining in the nose     C. porous structure of turbinate bones       D. abundant blood supply to nasal mucosa

A. The true vocal chords are attached to the ________________ cartilage in the front, and to the ______________________ cartilage in the back. B. The very end of the soft palate extends downward as a pointes flap known as the___________________. C. The cartilages that support the trachea are shaped like the letter ____________, with the open part of that letter facing towards the _____________________.

41. Where is the tricuspid valve located? A. between the left atrium and left ventricle B. at the opening of the pulmonary artery C. between the right atrium and right ventricle ____ 42. There are 50 to 199 taste cells on each taste bud. A. True B. False ____ 43. An aneurysm is A. the normal moving of an artery. B. the ballooning out of an artery with a thin arterial wall. C. the death of tissue due to an insufficient blood supply.

A section of the lung that receives its own tertiarybronchus is called the ________.a. bronchopulmonary segmentb. pulmonary lobulec. interpulmonary segmentd. respiratory segment