. Journal of anatomy . tation has occurred in agland-mouth. The zone of uterine epithelial cells intervening between the degener-ated surface ei)itheliuni and the connective tissue stroma represents the epitheliumlining the mouth of the gland. Plate III. Fig. 5. A drawing of embryo No. 4, showing the destructive effects of theprocess of embedding. The uterine epithelium is destroyed, and the connectivetissue stroma presents a degenerated appearance with areas of vacuolation. Fig. 6. A drawing of em])ryo No. 5. Implantation is seen resulting in completedestruction of the maternal tissues. At th
. Journal of anatomy . tation has occurred in agland-mouth. The zone of uterine epithelial cells intervening between the degener-ated surface ei)itheliuni and the connective tissue stroma represents the epitheliumlining the mouth of the gland. Plate III. Fig. 5. A drawing of embryo No. 4, showing the destructive effects of theprocess of embedding. The uterine epithelium is destroyed, and the connectivetissue stroma presents a degenerated appearance with areas of vacuolation. Fig. 6. A drawing of em])ryo No. 5. Implantation is seen resulting in completedestruction of the maternal tissues. At the upper pole of the embryo a cell is seenprotruding; elsewhere the conditions resemble those seen in fig. 5. ANATOMICAL NOTES. Professor Fawcett demonstrated a model of the shoulder girdle of a which he had made from sections kindly lent by Professor C. S. Minot ofHarvard. The object of the model was to show how much of the clavicle was formed fromectochondral bone and how much in cartilage. B L c BC Fig. 1.—Viewed from front. , acromion ; B., tenilou of biceps ; , brachial plexus ; C, toracoid ;, bony (ectochondral) clavicle; , Lartilaginmis part ofclavicle ; G glenoid ligament and capsule ; L., site of attachmentof conoid lisaraent; RiR^i, first and second ribs: , suprascapularnerve; ., subclavius muscle; , supraspinatus ectochondral bone is cross-hatched and the cartilage of theclavicle stippled. At this stage, although there was a little invasion of the cartilage from the ecto-chondral bone, it is evident that practically the outer half of the clavicle is formedectochondrally, and that the remaining inner part, with the exception of that inimmediate relation with the sternum, is formed at first in cartilage. This cartilage is transitory, and of much the same nature as that found in themandible at the coronoid and condylar processes. Anatomical Notes 205 The scapula shows a well-marked hook-like acromion process
Size: 1525px × 1639px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, booksubjectanatomy, bookyear1867
