Cervical vertebrae can be distinguished from other vertebrea on the basis of

Options

A. Odontoid processes
B. Transverse processes
C. Amphiplatyan centrum
D. Vertebra-arterial canals

Answer

### Step-by-Step Solution:

1. **Understanding Vertebrae**: The vertebral column consists of 33 individual bones called vertebrae, which are categorized into different regions: cervical, thoracic, lumbar, sacrum, and coccyx.

2. **Identifying Cervical Vertebrae**: The cervical vertebrae are located in the neck region, immediately below the skull, and consist of seven vertebrae (C1 to C7). The first two cervical vertebrae, C1 (Atlas) and C2 (Axis), are specialized and have unique functions.

3. **Key Features of Cervical Vertebrae**: Unlike other vertebrae, cervical vertebrae have distinct anatomical features. One of the most notable features is the presence of transverse foramina in each cervical vertebra.

4. **Function of Transverse Foramina**: The transverse foramina serve as passageways for the vertebral arteries, which supply blood to the brain. This is a crucial function that distinguishes cervical vertebrae from other types of vertebrae.

5. **Evaluating the Options**:
- **Odontoid Processes**: Present only in the Axis (C2), not a distinguishing feature of all cervical vertebrae.
- **Transverse Processes**: Found in all vertebrae, not unique to cervical vertebrae.
- **Amphiplatian Centrum**: A characteristic of certain mammals, not specific to cervical vertebrae.
- **Vertebral Arterial Canals**: Unique to cervical vertebrae due to the presence of transverse foramina.

6. **Conclusion**: The distinguishing feature of cervical vertebrae compared to other vertebrae is the presence of vertebral arterial canals, which are formed by the transverse foramina.

### Final Answer:
Cervical vertebrae can be distinguished from other vertebrae on the basis of **vertebral arterial canals**.

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