d gland. The fourth pouch itself produces a nodule oftissue which has been said to form the anterior pair of parathyreoid glands,but its fate is still uncertain. Since the derivatives of the first pouch are to be described with the ear,it remains to consider the palatine tonsils, as related with… … Fig. 1S9.; tlnnius, th., and lh\Te-oid, t.,of 2g mm. humanembryo; p., .parathyre-oid gland [derived fromthe 3d pouch (?)]; p.p.,parathj reoid gland [de-rived from the 4th pouch(?)]; p. I., pyramidallobe ot the thyreoid ;ao., aorta ; v., Aena cavasuperior. (.After Ver-dun.) Palatine tonsils.The…
Histology · Microscopy
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