Where is the trachea bifurcates it is reinforced by a cartilaginous plate is called?

The trachea bifurcates at the carina, which is located at the level of the T5 to T7 vertebrae in the thoracic cavity. This bifurcation leads to the right and left main bronchi, and the carina is reinforced by a cartilaginous plate known as the carina cartilage. This structure helps maintain the airway's integrity and prevents collapse during breathing.