pseudoglandular period

pseudoglandular period: the period or phase of prenatal lung development lasting from about the sixth to the sixteenth week, and followed by the canalicular period. Repeated branching of bronchi and bronchioles takes place to form primordial conductive airways, and the lungs resemble exocrine glands. Fetuses delivered during this phase are not viable because the lungs are not capable of respiration until the twenty-fourth to twenty-sixth week. Called also pseudoglandular phase.

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