haikouichthys, one of the earliest (speculated) fish, was a basal animal with a notochord that lived during the cambrian era. anyway i drew it with a binky
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Notochord Vs. Neural Tube

I keep confusing these two. Below is a Bouras card that kept confusing me but I want to double check, is that supposed to say "ectoderm" rather than mesoderm? What I thought was

Neural Tube: Ectodermal. Will eventually become the spinal cord.

Notochord: Mesodermal and will induce the formation of neural plate->neural tube of the ectoderm

If there's anything else to know about these let me know.

https://preview.redd.it/h2517p8totj81.png?width=581&format=png&auto=webp&s=0adc0a51821941ca57fa687dd00b7bc0685aaa1b

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Tunicates are chordates that start out as tadpole-like larvae, then lose their notochord and live a sessile life as adults!
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The Giant Pyrosome is a bioluminescent, free-floating, colonial tunicate that is made of thousands of identical clones. These clones have a notochord ("spinal" chord) and are therefore chordates, along with all vertebrates. oceana.org/marine-life/gi…
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Notochord mesoderm, nervous system ectoderm?

I’m reading that the notochord is mesoderm but the nervous system as a whole is ectoderm. I’m just confused because I swore I read somewhere that the brain and spine derive from ectoderm, but isn’t the notochord the original CNS? Do we just pick ectoderm for the nervous system unless the notochord is specifically called out?

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AAMC BioPack 1 #84: can someone please help me with this question? I picked dermal because I figured that since the notochord is derived from mesoderm, it would make dermal correct.
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πŸ‘€︎ u/ashketchup012345
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Pretty sure this is some sort of animal with a notochord but not sure. My fossil friends so far have suggested early amphibian, lamprey, or shark. Given that its from the Francis Shale of Mazon Creek I would think it unlikely to be an amphibian however. ~300 Ma in Pennsylvanian. reddit.com/gallery/j64r2n
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Adaptive optic wavefronts for correcting the excitation and detection of fluorescence from the dorsal surface of the notochord in a zebrafish embryo v.redd.it/jx2doeccrzs01
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Tunicates are more closely related to humans than to e.g. crayfish by virtue of being chordates. Their simple immobile adult apperance belies their relation to vertebrates, but the larva form has a notochord.
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Cover Girl (Notochord 8-bit Mix) soundcloud.com/notochord/…
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DMR - Notochord youtu.be/-q5FOrjqL7o
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[Embryology] - Is the notochord derived from the endoderm or the mesoderm? I have 2 conflicting sources.

Here is one source saying it comes from the endoderm. Here's another saying it comes from the mesoderm.

Which is it? Thank you.

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Notochord, its formation and functions - MED SNELL medsnell.com/formation-of…
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Nanonoise - Notochord youtube.com/watch?v=yc1hG…
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Circa Survive - Oh, Hello (Notochord 8-Bit Mix) soundcloud.com/notochord/…
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What is the difference between a notochord and a nerve cord?

Let's assume we're talking about the family "Branchiostoma."

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Help me find the Notochord and Endostyle

Hey r/zoology! I have here a picture of a lamprey larva I took (which was turned into a composite image by some kind redditors. I know it's out of focus at the anterior end but could you guys please try to highlight the notochord for me? It's for a project at uni and I am having trouble with it (because it won't be covered in lectures for a few weeks and the project is due Monday). I have my Zoology textbook in front of me but it's not much help.

Also if you could clarify the location of the endostyle (the thing underneath the gill slits which is a tad thicker than everything around it?)

Pic

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RuPaul - Cover Girl (Notochord Mix) soundcloud.com/notochord/…
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Nanonoise - Notochord [electronic] youtube.com/watch?v=yc1hG…
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Embryo Question: About the Notochord development

Hello, I had a question about embryology. Specifically, the notochord development.

Initially it starts fused with the ectoderm at the primitive streak. At this time it is a hollow canel. Midway it fuses with the endoderm and is termed "notochord plate". eventually, it seperates from the endoderm and becomes filled. this is the final notochord.

I was wondering, does this thing still remain attached to the ectoderm at the primtive pit? Or is it a tube of cells in the mesoderm that is no longer attached to the ectoderm and endoderm?

Thanks

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Notochord - Winters Calling (Original Mix) soundcloud.com/floridatec…
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Nanonoise - Notochord youtube.com/watch?v=yc1hG…
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Nanonoise - Notochord youtube.com/watch?v=yc1hG…
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Notochord - M (Original Mix) [FLT005] soundcloud.com/floridatec…
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