Vertebral Column Anatomy And Bones [ Cervical, Thoracic, Lumber, Sacral, Coccygeal Spine ] - Lec #6

Vertebral Column - Introduction | 3D Anatomy Tutorial | Vertebral Column Anatomy in Urdu/Hindi | Back Bone Anatomy And Function | Identification of Vertebrae | Sacrum Anatomy | Bones of Vertebral Column | How to Identify a Vertebrae(Anatomy) | Atlas and Axis Cervical Vertebrae (C1-C2) Anatomy | Anatomy of Spine | Backbone Anatomy | वर्टेब्रल कॉलम एनाटॉमी हिंदी में | vartebral kolam enaatomee (Anatomy) hindee meinShow more

The vertebral column, also known as the spinal column or backbone, is the central structural element of the axial skeleton in humans and many other vertebrates. It consists of a series of individual bones called vertebrae that are stacked on top of one another, forming a flexible and protective column for the spinal cord. The vertebral column has several important functions, including providing support for the upper body, protecting the spinal cord, and allowing for movement and flexibility.

Here are the key components and regions of the vertebral column:

1. Vertebrae: The vertebral column is composed of 33 individual bones called vertebrae. In adults, there are typically 24 individual vertebrae, which are stacked on top of one another. However, during development, some vertebrae fuse together to form larger bones, resulting in 26 total vertebrae in the adult spine. The vertebrae are divided into different regions, each with distinct characteristics.

2. Cervical Vertebrae: The cervical vertebrae are the seven vertebrae located in the neck region of the vertebral column. They are the smallest and lightest vertebrae and have specific features that allow for a wide range of motion in the neck. The first two cervical vertebrae, called the atlas (C1) and axis (C2), have unique shapes that enable rotational movement of the head.

3. Thoracic Vertebrae: The thoracic vertebrae are the 12 vertebrae located in the chest region of the vertebral column. They are larger and stronger than the cervical vertebrae and are characterized by the presence of rib articulation facets on each side, where the ribs attach to the spine.

4. Lumbar Vertebrae: The lumbar vertebrae are the five largest and strongest vertebrae located in the lower back region of the vertebral column. They are designed to support the weight of the upper body and provide stability. The lumbar vertebrae have thick and robust vertebral bodies.

5. Sacrum: The sacrum is a triangular bone located at the base of the vertebral column, below the lumbar vertebrae. It is formed by the fusion of five sacral vertebrae. The sacrum connects the spine to the pelvic bones and provides stability to the pelvis.

6. Coccyx: The coccyx, also known as the tailbone, is a small, triangular bone located at the very bottom of the vertebral column. It is formed by the fusion of four coccygeal vertebrae. The coccyx serves as an attachment site for various muscles and ligaments.

Between each pair of adjacent vertebrae, there are intervertebral discs, which are cartilaginous structures that act as shock absorbers and allow for movement and flexibility in the spine. The spinal cord runs through the central canal formed by the vertebral column, and spinal nerves branch out from the spinal cord and pass through openings between adjacent vertebrae, known as intervertebral foramina, to innervate different parts of the body.

It's important to note that individual variations in the number of vertebrae and their characteristics can occur. Some people may have additional cervical or lumbar vertebrae, while others may have variations in the fusion of certain vertebrae.

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Introduction of Anatomy Lecture #1
https://youtu.be/6jlKiz8FDdA

Anatomical position and directional terms Lecture #2
https://youtube.com/shorts/onwhUzFBBzk?feature=share

Bones of the Skull Lecture #3
https://youtu.be/qeouXzYBYKo

Bones of Upper Limb Lecture #4
https://youtu.be/f17CbBbQox8

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