By G. Bernardini
Developmental biology draws scientists from many various components of biology, and the amphibian Xenopus holds a unique position one of the organisms studied as a version of vertebrate improvement. previously, no lately released atlas existed to assist researchers and scholars coming to the Xenopus embryo for the 1st time.
The current e-book satisfies this desire. With its synthesizing technique and its beneficiant provision of lovely scanning, transmission, and light-weight microscopy pictures, this precise quantity could be a customary reference not just for developmental biologists yet for all scholars of embryology, histology, and comparative anatomy.
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Additional info for Atlas of Xenopus Development
57 Atlas of Xenopus Development More caudally again, Fig. 43f shows the oesophagus now structurally separated from the lateral branchial cavities. Ventrally are the trachea and the abdominal cavity, where the intestine and liver are visible. The section of Fig. 43g cuts the larva at the pronephric level. Just under the notochord the oesophagus and the flattened trachea are visible. Figure 43s shows in better detail the liver tissue and the intestinal wall; a brush border is clearly visible on the intestinal epithelium.
The most rostral transverse section that we present (Fig. 32b) shows the prosencephalon and the olfactory pits. Figure 32c cuts through the eyes, the cement gland and the rostral portion of the pharynx cavity. More caudally (Fig. 32d), the pharynx cavity widens and the large vacuolated notochord is surrounded by mesenchyme. In the eyes, tapetum nigrum, retina and crystalline lens are distinguishable. The section in Fig. 32e cuts through the otic vesicles, Fig. 31. Stereophotomicrograph of a 2-day-old larva (x 19) shows the parachordal cartilages beside the notochord and grazes the cardiogenic area, which can be better seen in Fig.
Between the two ocular globes is the diencephalon. Ventrally is the pharynx; in the centre of its cavity stand the velar plates, greatly reducing the volume of the pharynx and dividing it into two zones. The architecture of the velar plate will be better understood if the enlargement in Fig. 43c is compared with the SEM images of Figs. 45-47. Further details are revealed by transmission electron microscopy (Fig. 48). The pharynx is surrounded by muscle fibres and by cartilaginous structures. An in toto view of the cartilaginous skeleton can be seen in the specimens shown in Fig.