Carina

Dr Vincent Tatco and Dr Derek Smith et al.

The carina is part of the trachea and is an important reference point in chest imaging.

Gross anatomy

The carina is found at the base of the trachea and it is formed as the main bronchi divide into right and left branches.

The carina usually sits in the T4/T5 plane and is at the level of the sternal angle (thoracic plane).

History and etymology

"Carina" ultimately derives from Latin, meaning "keel of a boat" 1. The term was originally used in botany to indicate a projecting ridge on the back of an organ.

Thoracic anatomy
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Article information

rID: 31435
Systems: Chest, Head & Neck
Section: Anatomy
Tags: stub, refs, cases
Synonyms or Alternate Spellings:

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Cases and figures

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    Figure 1: right sided bronchi
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    Figure 2: left sided bronchi
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