postgenal air sac [FBbt_00003105]

A small tracheal air sac of the adult head, located ventrally and posterior to the eye. It corresponds to the expansion of a ventral branch of the cervical trachea. It tapers ventrally to form the labial trachea and its branch, the maxillary palpus trachea.

postgenal air sac

ID: FBbt_00003105

Adult Anatomy

A small tracheal air sac of the adult head, located ventrally and posterior to the eye. It corresponds to the expansion of a ventral branch of the cervical trachea. It tapers ventrally to form the labial trachea and its branch, the maxillary palpus trachea.

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## Classification

Relationships