Sacrum / Coccyx / Vertebral Column / Types of vertebrae
Channel: Think angle
Date: 2023-08-26

The sacrum (S1-S5) is located (article)
https://thinkangle.blogspot.com/2023/08/Location-The-sacrum-S1-S5.html
Location-Coccyx  (article)
https://thinkangle.blogspot.com/2023/08/Location-Coccyx-Nursing-course.html
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Sacrum:
The sacrum is a triangular-shaped bone located at the base of the vertebral column, between the fifth lumbar vertebra and the coccyx. It consists of five fused vertebrae (S1 to S5) and serves as a connection point between the spine and the pelvic girdle. The sacrum forms the posterior wall of the pelvis and provides support for the vertebral column, as well as stability to the pelvis.

Coccyx:
The coccyx, also known as the tailbone, is a small, triangular bone located at the very end of the vertebral column. It consists of three to five fused coccygeal vertebrae and has limited functional significance in humans. The coccyx is a remnant of a tail-like structure present in some of our evolutionary ancestors.

Vertebral Column:
The vertebral column, commonly known as the spine or backbone, is a crucial part of the human skeletal system. It serves several important functions, including providing support for the body, protecting the spinal cord, allowing movement, and maintaining an upright posture. The vertebral column is composed of individual vertebrae stacked on top of each other.

Types of Vertebrae:
There are five main types of vertebrae in the human vertebral column, each with specific characteristics and functions:

Cervical Vertebrae (C1-C7): These are the seven vertebrae located in the neck region. The first two cervical vertebrae, the atlas (C1) and the axis (C2), have unique shapes that allow for the nodding and rotation of the head. The other cervical vertebrae contribute to neck movement and support.

Thoracic Vertebrae (T1-T12): There are twelve thoracic vertebrae corresponding to the upper and mid-back region. They connect to the ribs and play a role in protecting the vital organs in the chest.

Lumbar Vertebrae (L1-L5): The lumbar vertebrae, five in total, are located in the lower back. They are larger and stronger to support the weight of the upper body and provide stability during movement.

Sacral Vertebrae (S1-S5): The sacral vertebrae are fused together to form the sacrum. They connect the vertebral column to the pelvic girdle.

Coccygeal Vertebrae: These are the fused coccygeal vertebrae that make up the coccyx or tailbone. They have minimal mobility and are a remnant of our evolutionary history.