Difference between Vertebral column and Notochord

Difference between Vertebral column and Notochord

Difference between Vertebral column and Notochord are in tabular form below –

No.

Vertebral column

Notochord

Definition

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

2. The organisms of higher chordate have vertebral column. The organisms of lower chordate have notochord.

Composed of

3. The vertebral column of an organism is composed of bones. The notochord of an organism is composed of cartilages.

Regions

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

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

6. The vertebral column provides structural support and movement to the organisms. The notochord provides support to the skeletal muscles.
Updated: February 9, 2022 — 11:47 pm

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