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146:. The cephalic end opens into the pharynx through a slit-like aperture formed by the persistent anterior part of the groove. Initially, the cephalic end is in open communication with the foregut, but eventually it becomes separated by the indentations of the
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The head and neck of a human embryo thirty-two days old, seen from the ventral surface. The floor of the mouth and pharynx have been removed. (Laryngotracheal tube labeled at lower left, second from bottom.)
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is developed. The cephalic part of the tube becomes the larynx, and its next succeeding part is the trachea, while from its caudal end, a
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The rudiment of the respiratory organs appears as a median longitudinal groove in the ventral wall of the
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Knowledge (XXG) articles incorporating text from the 20th edition of Gray's
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When the tracheoesophageal folds fuse in the midline to form the
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LLU: Medicine: Anatomy: Histology Mentor: Respiratory
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107:Anatomical terminology
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400:Human head and neck
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369:Anatomy
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