Ten Components of the Tracheobronchial tree and Mnemonics to remember them

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The tracheobronchial tree is the branching tree of airways beginning at the larynx and extending inferiorly and peripherally into the lungs as bronchioles. The luminal diameter decreases as the branching increases more peripherally into the lungs. The walls of the airway down to the level of the bronchioles contain C-shaped rings composed of hyaline cartilage to maintain luminal patency. • When described as an inverted tree, the tracheobronchial tree constitutes: • the trunk: the trachea • two major branches: the left and right main (primary) bronchi which bifurcate at the carina located in the transthoracic plane of Ludwig • several intermediate branches: the lobar (secondary) and segmental (tertiary) bronchi within the lungs • many further consistent smaller and smaller subdivisions, terminating in the alveoli in the peripheral of the lungsThe tracheobronchial tree is the branching tree of airways beginning at the larynx and extending inferiorly and peripherally into the lungs as bronchioles. The luminal diameter decreases as the branching increases more peripherally into the lungs. The walls of the airway down to the level of the bronchioles contain C-shaped rings composed of hyaline cartilage to maintain luminal patency. • When described as an inverted tree, the tracheobronchial tree constitutes: • the trunk: the trachea • two major branches: the left and right main (primary) bronchi which bifurcate at the carina located in the transthoracic plane of Ludwig • several intermediate branches: the lobar (secondary) and segmental (tertiary) bronchi within the lungs • many further consistent smaller and smaller subdivisions, terminating in the alveoli in the peripheral of the lungs • #tracheobronchialtree

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