insect tracheal pit

embryonic tracheal pit

Deep and narrow pit formed by the invagination of a tracheal placode in a late extended germ band embryo. Invagination of the placode begins during stage 11. Branches begin to bud from the pit during stage 11, with a dorsal and ventral stem being apparent by mid-stage 12. The pit closes over during stage 13. There are 10 pairs of tracheal pits - one pair in each tracheal metamere (each segment from T2 to A8). Pits are located in the central one third of each parasegment, with the most anterior in parasegment 4 and the most posterior in parasegment 14.

Type Organ
Structure parente insect tracheal primordium
Nom latin embryonic tracheal pit

Questions fréquentes

What is the insect tracheal pit?
Deep and narrow pit formed by the invagination of a tracheal placode in a late extended germ band embryo. Invagination of the placode begins during stage 11. Branches begin to bud from the pit during stage 11, with a dorsal and ventral stem being apparent by mid-stage 12. The pit closes over during
What is the Latin name for the insect tracheal pit?
The Latin name for the insect tracheal pit is embryonic tracheal pit.

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