called Digitized by Microsoft® UMBILICAL CORD. 309 false knots. (True knots, tied by the intrauterine nio\-enients of theembryo, are very rare.) There are no lymphatic ^•essels or capillaries ^ .or*-.o- li ^<J^ f< ,-> ^4ino, We« ■«a rounectn-e Li&sue. ■^■^fJ , Cell knots. 1 w^ .… … Fig. 355.—Cross Sections of TImrtmcal Cortis. A, 20, from an embr\o of 2 mos.; B, ■ 3, al birth.al., Allantois ; art., arteiA; coe., coelom ; v.. \ein ; y, s., >olk stalk. collapised in sections; their contraction is of interest since nerves have beentraced into the cord for only a very short…
Histology · Microscopy
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