the sacrum
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This is a tricky question as it is not clear which end of the spine we are referring to. At the head end there is a bone or vertebra upon which the head is resting this is known as the atlas, it does not have a body and its centrum fuses with the axis to provide a pivot for the head to turn on. At the other end of the spine - the tail end the last bones are fused together to form the coccyx, the number may vary from 3 to 5. These bones are rudimanetary and are usually fused together.
In the cervical and thoracic area of your spine. The cervical vertebrae starts right under your skull (following what's called the occipital foramen/foramen magnum). There are 7 cervical verterbrae and they end aproximatively under your neck (in the place where you feel a small circular prominence). Right under there are the thoracic vertebrae, in the number of 12. They end, let's say, at the upper part of your lower back.
The cervical vertebrae are the smallest and most mobile vertebrae in the spine, making them more susceptible to injury. The neck region is also more exposed and vulnerable to trauma due to its position and function in supporting the head. Additionally, the cervical spine is required to support the weight of the head and facilitate a wide range of movement, increasing the risk of dislocations and fractures.
The inferior end of the sacrum is composed of the coccyx, which is a small triangular bone formed by the fusion of 3-5 vertebrae. The coccyx serves as an attachment site for ligaments and muscles and helps support the pelvis when sitting.
The vertebrae make up the center of the skeleton. These bones are stacked on top of each other to form the spinal column, which plays a crucial role in supporting the body and protecting the spinal cord.
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At the end of the vertebral column, the coccyx, commonly known as the tailbone, is located. It is composed of several fused vertebrae and serves as an attachment point for various muscles and ligaments. Additionally, in some cases, conditions like a pilonidal cyst can develop in this area, which may require medical attention.
The vertebrae at the end of the spine are fused to form the coccyx (tailbone).
There are 33 vertebrae in the spinal cord of a human being. They are broadly categorized into 5 areas. They are called the cervical, thoracic, lumbar, sacrum & coccyx vertebra. The upper 3 areas have a total of 24 vertebrae, which includes 7 cervical vertebrae, 12 thoracic vertebrae & 5 lumbar vertebrae. Sometimes the lumbar region, may have an additional vertebra, it does happen - but it is rare. 5 vertebrae are fused together to form the sacrum & 3 vertebrae form the end of the spinal column which is the coccyx.
the sacrum-bg
Cervical vertebrae possess transverse foramina to allow for the vertebral arteries to pass through on their way to the foramen magnum to end in thecircle of Willis.
McLeod Residence ended in 2008.
This is a tricky question as it is not clear which end of the spine we are referring to. At the head end there is a bone or vertebra upon which the head is resting this is known as the atlas, it does not have a body and its centrum fuses with the axis to provide a pivot for the head to turn on. At the other end of the spine - the tail end the last bones are fused together to form the coccyx, the number may vary from 3 to 5. These bones are rudimanetary and are usually fused together.
The cervical bones (1-5) run from the base of the skull to the bottom of the neck, roughly. The thoracic vertebrae (1-12) run from the end of the cervical spine to the lumbar spine. The lumbar vertebrae (1-5) run from the end of the thoracic spine to the tailbone.
coccyx
coccyx
coccyx