Which of the following is the only complete cailage ring in the respiratory tree?
Cricoid cailage
Thyroid cailage
Cunieform cailage
Epiglottis
Answer- A (Cricoid cailage)(Ref: BDC 5/e Vol lII/p238)Complete cailage ring is seen in Cricoid cailage.Cricoid cailage is shaped like a ring. It encircles the larynx below the thyroid cailage. It is thicker and stronger than the thyroid cailage.