Ainda não temos significados para "medullary tube".
1But the medullary tube of the Vertebrates originates in the same way.
2The unsegmented chorda develops between the dorsal medullary tube and the ventral gut-tube.
3E The medullary tube (mr) is closed; the body-cavity (c) begins to form.
4Nevertheless, as we know from human embryology, the medullary tube is formed from the cutaneous layer.
5A epidermis, B medullary tube, C chorda, C1 inner chorda-sheath, D visceral epithelium, E sub-intestinal vein.
6In the median line we see the chorda (ch) through the transparent medullary tube (m).
7Thus is formed the dorsal wall, and the medullary tube takes up a position inside the body.
8In Figure A the medullary tube (n) and the alimentary canal (a) are still open grooves.
9The medullary tube is still simple.
10It originates in the shape of a simple medullary tube from the outer membrane of the embryo-theskin-sense layer.
11The first rudiment of it is always a simple vesicular enlargement of the fore end of the medullary tube.
12The brain is very rudimentary at first, a mere bulbous enlargement of the fore end of the medullary tube.
13The medullary tube of the Chordonia has been formed by the lengthening of the vertical brain on the dorsal side.
14The two parallel dorsal or medullary swellings that enclose it grow together over it afterwards, and form the medullary tube.
15The fore-end of the medullary tube expands into a vesicle and forms the brain, which soon divides into five cerebral vesicles.
16The prorenal duct is visible in this gap even at the time of the severance of the medullary tube from the horn-plate.
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Medullary tube nas variantes da língua