Difference between Vertebral column and Notochord
Difference between Vertebral column and Notochord are in tabular form below –
No. |
Vertebral column |
Notochord |
Definition |
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1. | The backbone or straight line which appears anteroposteriorly consists of 26 vertebrae and are separated by intervertebral discs, And divided into five vertebral regions, this is known as Vertebral column. | During the embryonic development in some animals, a structure which is rigid and rod-like forms on the dorsal side is known as Notochord. |
Chordates |
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2. | The organisms of higher chordate have vertebral column. | The organisms of lower chordate have notochord. |
Composed of |
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3. | The vertebral column of an organism is composed of bones. | The notochord of an organism is composed of cartilages. |
Regions |
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4. | Total four regions are present such as atlas, axis, cervical and thoracic vertebrae in the organisms of vertebral column. | Regions are absent in the organisms of notochord. |
Takes place |
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5. | The vertebral column of an organism surrounds nerve cord. | The notochord of an organism takes place between the gut and the dorsal nerve cord. |
Functions |
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6. | The vertebral column provides structural support and movement to the organisms. | The notochord provides support to the skeletal muscles. |