Humans only have one spinal column although the one spinal column is made up of 33 individual bones called vertebrae that are stacked together.
But by adulthood, some of the vertebrae at the bottom of our spine fuse together and result in most people having 24 moveable vertebrae.
The columns in the spinal cord are the posterior column, middle column and the anterior column.
The posterior column is everything that is posterior to the PLL and the pedicles.
The middle column is the posterior one third of the vertebral body and the posterior one third of the intervertebral disc.
The anterior column is the anterior longitudinal ligament and the anterior two thirds of the vertebral body.
The difference between the spinal cord and the spinal column are the spinal column is a stack of bones which protects your spinal cord.
And the spinal cord is a bundle of nerves and tissues which run inside your spinal column.
The spinal cord is a tube shaped bundle of nerves and tissues which is part of your central nervous system and runs from the base of your brain stem to the lower back and is also surrounded by cerebrospinal fluid and covered by your meninges.
Your spinal column also protects your spinal cord with shock absorbing spinal disks between each vertebra and the spinal cord also sends signals to your brain through nerve tracts that carry different types of sensations in different pathways.
The function of the spinal column is to provide the body with structural support and allow movement while also protecting your spinal cord.
The spinal cord is a bundle of nerves that connect the brain to the rest of your body and acts as a central axis of your body and enables flexibility and movement as well as posture by transferring weight from the trunk to your legs.
The 5 columns of the spine are the cervical spine, thoracic spine, lumbar spine, sacral spine and the coccygeal spine.
The cervical spine are the 7 bones in your neck, with the first vertebra that supports the skull.
The Thoracic spine is the 12 bones in your back area.
The lumbar spine is the 5 bones in your lower back area.
The Sacral spine are the 5 sacral bones which fuse into one bone in adulthood.
The Coccygeal spine is the four coccygeal bones which fuse into one bone in adulthood, though the number can vary from 5 to 3.
A column in the spinal cord is a column of bones which protect your spinal cord.
Spinal columns in the spinal cord are also called the spine, vertebral column or backbone.
The spinal column is made up of vertebrae, which are individual bones that are separated by intervertebral discs.
The discs act as shock absorbers to cushion your spinal cord and your vertebrae.
Your spinal column also contains the ligaments which connect your vertebrae together.
The spinal column also encloses your spinal cord and the fluid which surrounds your spinal cord.
You cannot live without a spinal column as the spinal cord is also a column of nerves that connects your brain with the rest of your body, and also allows you to control your movements.
Without a spinal cord, you would not be able to move any part of your body, and your organs could not function.
This is why keeping your spine healthy is vital if you want to live an active life.
The parasympathetic fibers, which control your heart, exit the central nervous system at brain stem level, i.e. the vagal nerve (cranial nerve X).
In contrast, the sympathetic control of your heart originates from the upper thoracic spinal cord segments (Th1–Th5).