Vertebrate Anatomy: Common Vertebral Parts
Vertebrate Anatomy: Common Vertebral Parts
- This section focuses on the anatomical parts common to all vertebrates.
- Refer to the textbook diagram to enhance understanding.
- The three different types of vertebrae (cervical, thoracic, and lumbar) share common basic parts, despite their distinct appearances.
Vertebrae Types
- Cervical Vertebrae:
- Located in the neck; there are seven cervical vertebrae.
- Identified by the presence of three foramina (holes) instead of one.
- Thoracic Vertebrae:
- Lumbar Vertebrae:
- Located in the lower back.
- Chunky and stout in appearance due to the need to support more body weight.
Vertebral Parts
- Spinous Process:
- Most posterior portion of the vertebra.
- Can be felt from the surface of the body on the back.
- The lumps running down the center of your back.
- Serves as a muscle attachment site.
- Transverse Processes:
- Extend laterally on either side of the vertebra.
- Also muscle attachment sites.
- In thoracic vertebrae, they also serve as rib attachment sites.
- Vertebral Foramen:
- The major hole in each vertebra.
- Houses the spinal cord.
- Collectively, these foramina form a long vertebral canal for the spinal cord.
- Body of Vertebra:
- The weight-bearing part of each vertebra.