Chapter 11, Problem 7P

A contraction of the smooth muscle in the walls of the bronchi and bronchioles that tighten and squeeze the airway shut is known as a/an ______________

During a bronchoscopy, the surgeon retrieves a small bronchial tissue specimen with a biopsy brush. The surgical technologist assisting the surgeon uses a brush to smear the microscope slide held by the circulator. What is the purpose of the smear?