CHORDATA

TRAITS

• There are 4 traits all chordates have in common
• A notochord
• A Hollow nerve chord
• Pharyngeal pouches
• An endostyle

NOTOCHORD

• A rod of vacuolated cells encased by a firm
• Sheath that lies ventral to the neural tube in vertebrate
• Embryos and some adults.

HOLLOW NERVE CHORD

• Is a nerve chord that lies dorsal to the notochord
• Is formed from a part of the ectoderm that rolls forming
• The hollow tube , later modified in the brain and spinal chord

PHARYNGEAL POUCHES

• Form on the endothermal side between the bronchial arches

ENDOSTYLE

• Elongated grove in the pharynx floor
• To protochordates that may develop as
• The thyroid gland in chordates

YES THEY ARE BASICALLY THE SAME

• Vertebrates are animals that are members
• Of the subphylum vertebrata
• Vertebrata means having a backbone or
• Spinal column

INVERTEBRETES

• Is an animal lacking a backbone.

WHAT ARE VERTABRETES

• Mammals, fish, amphibians
• Reptiles, birds, tunicates.
• Are examples of vertabretes

WHAT ARE INVERTABRETES

• Urochordata and chephalochordata
• Are examples of invertabretes.

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