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9 Cards in this Set
- Front
- Back
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Chordate Body
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Notocord
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Dorsal, Hollow Nerve Cord
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Develops into the central nervous system.
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Pharyngeal Slits or Clefts
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Grooves in the pharynx called pharyngeal clefts develop slits that open to the outside of the body.
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Muscular, Post-Anal Tail
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Tail extending posterior to the anus.
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Subphylum Urochordata
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Tunicates, also known as sea squirts, looks like a chordate larve, which has a siphon.
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Subphylum Cephalochordata
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Lancelets, bladelike shape, suspension feeders that retain characteristics of adult chordates.
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Craniates
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Chordates that have a head.
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Neural Crest
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Unique to craniates, is a collection of cells that appears near the dorsal margins of the closing neural tube in an embryo. Gives rise to the bones and cartilage of the skull.
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Class Myxini
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The least derived craniate lineage known as the hagfishes.
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