The walls of terminal bronchioles contain a significant amount of which tissue type?
A) smooth muscle
B) hyaline cartilage
C) skeletal muscle
D) pseudostratified ciliated columnar epithelium
E) elastic cartilage

Question

Quizplus · Accepted Answer

The walls of terminal bronchioles contain smooth muscle which helps to control the diameter of the airways and regulate airflow. Hyaline cartilage and elastic cartilage are found in the walls of larger airways, such as the trachea and bronchi, but not in the terminal bronchioles. Skeletal muscle is not found in the walls of any part of the respiratory system. Pseudostratified ciliated columnar epithelium is the tissue type that lines most of the respiratory system, but it is not found in the walls of the terminal bronchioles.

The Walls of Terminal Bronchioles Contain a Significant Amount of Which