bronchus (redirected from Left mainstem bronchi)

bronchus /bron·chus/ (brong´kus) pl. bron´chi   [L.] one of the larger passages conveying air to a lung (right or left primary bronchus) and within the lungs (lobar and segmental bronchi).

Bronchi, showing primary, lobar, and segmental bronchi, which connect to the bronchopulmonary segments (S I–X) of the right and left lungs.

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bron·chus (brngks)

n. pl. bron·chi (-k, -k)

Either of two main branches of the trachea, leading directly to the lungs.

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Bronchus

One of the two large tubes connecting the windpipe and the lungs.

Mentioned in: Lung Abscess

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bronchus

[brong′kəs] pl. bronchi [-kī]

Etymology: L; Gk, bronchos, windpipe

any one of several large air passages in the lungs through which pass inhaled air and exhaled air. Each bronchus has a wall consisting of three layers. The outermost is made of dense fibrous tissue, reinforced with cartilage. The middle layer is a network of smooth muscle. The innermost layer consists of ciliated mucous membrane. Kinds of bronchi are lobar bronchus (secondary bronchus), primary bronchus, and segmental bronchus (tertiary bronchus). Also called bronchial tube. See also bronchiole. bronchial, adj.

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bronchus [brong´kus] (pl. bron´chi)

any of the larger passages conveying air to a lung (right or left principal bronchus) and within the lungs (lobar and segmental bronchi). See also respiration and see color plates.

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bronchus,

n the subdivisions of the trachea serving to convey air to and from the lungs.

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bronchus

pl. bronchi [L.] any of the larger passages conveying air to (right or left principal bronchus) and within the lungs (lobar and segmental bronchi). See also respiration, bronchial.

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bronchus clamp

like a bowel clamp but with solid straight blades. Has ratcheted handles.

tracheal bronchus

a lobar bronchus originating directly from the trachea in pigs and cattle, and which aerates the cranial lobe of the right lung.