Maximum amount of smooth muscle, in relation to wall thickness, is present in:
Correct Answer: Terminal bronchioles
Description: The trachea and upper respiratory passages (first 7 generations) have cailage & glands in their walls but little smooth muscle. They are lined by ciliated epithelium. Intermediate-sized and small-sized bronchi and bronchioles do not contain cailage. Cilia are present till respiratory bronchioles Terminal bronchioles have maximum amount of smooth muscle.
Category:
Physiology
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