The structure within the mediastinum, anterior to the vertebrae and posterior to the trachea is the .

Trachea divides into bronchi at the level of ___________ thoracic vertebra?5th3rd4th9th

Which ONE of the following statements regarding the trachea is CORRECT?Group of answer choicesIt is posterior to the oesophagus in the neckIt divides into the main bronchi at the at vertebral level T3It contains cartilaginous rings that are deficient anteriorlyIt is lined by respiratory epitheliumIt begins at the level of the hyoid bone

t what approximate vertebral level does the trachea normally bifurcate into the left and right main bronchus?

The ______ lies in the mediastinum posterior to the sternum and between the lungs.Multiple choice question.thyroidliverpancreasthymus

What structure holds open the trachea and upper bronchial tree?Multiple Choiceskeletal muscleglottishyoid bonecartilaginous rings