![human biology - Why is the chordate nerve cord described as hollow when it appears to be solid? - Biology Stack Exchange human biology - Why is the chordate nerve cord described as hollow when it appears to be solid? - Biology Stack Exchange](https://i.stack.imgur.com/6BOrdm.png)
human biology - Why is the chordate nerve cord described as hollow when it appears to be solid? - Biology Stack Exchange
in chordates the notochord is 1)mesodermal ,dorsal to the nerve chord 2)mesodermal ,ventral to the nrve chord 3)endodermal, dorsal to the the nerve chord 4)endodermal ,ventral to the nerve chor
![human biology - Why is the chordate nerve cord described as hollow when it appears to be solid? - Biology Stack Exchange human biology - Why is the chordate nerve cord described as hollow when it appears to be solid? - Biology Stack Exchange](https://i.stack.imgur.com/7P7GS.jpg)
human biology - Why is the chordate nerve cord described as hollow when it appears to be solid? - Biology Stack Exchange
![Introduction to Phylum Chordata| Dorsal Hollow Nerve chord | Gill Slit@biologywithmuhammadsajid - YouTube Introduction to Phylum Chordata| Dorsal Hollow Nerve chord | Gill Slit@biologywithmuhammadsajid - YouTube](https://i.ytimg.com/vi/19VJKEcFd3w/hqdefault.jpg?sqp=-oaymwEmCOADEOgC8quKqQMa8AEB-AH-DoACuAiKAgwIABABGHIgOShCMA8=&rs=AOn4CLCfe6i7EdwkuOZANaM3AK9rniPlzg)