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SOME FACTS ABOUT THE NERVOUS SYSTEM, SPINAL COLUMN AND PELVIS

THE NERVOUS SYSTEM

Our brain is like a fantastic computer sitting inside our skull, it takes in millions of bits of information about how our body is working and what's going on all around us . It processes all this information and sends out millions of commands, like how fast our heart should beat, how are our hormonal chemistry should balance, how to throw a ball, how to bake cookies, and what kind of clothing to wear today . It remembers millions of memories and is capable of expressing the gamut of human feelings, moods, emotions, and inspirations .
But How, if our brain is inside our skull, how does it send its information to our heart, our lungs, our digestive system , our arms or legs ? How doe we know in our head-(that is our brain) that a mosquito is resting on our ankle ? What is the connection between the ankle and the brain ?
Between the brain in the head and the rest of our body lies the most advanced communication system in the human creature . It is made up of billions of nerve wires that send information to our brain and billions of nerve wires that transmit information from our brain . This communication system is called the NERVOUS SYSTEM .

Regions of the human brain

Most of the "wires" that make up our Nervous System are contained in the Spinal Cord . The Spinal Cord is a collection of billions of nerves that start in the brain, travels down our backs an then branches out to all parts of the human body . It is like a thick cable packed tightly with transmitting fibers .
The brain and the spinal cord make up the Central Nervous System . It is called central because they are the center of our bodies . Coming out of the spinal cord and even some parts of the brain are millions of nerve fibers that travel all over our bodies . They are so numerous that if you were to take away all your skin, muscles, bones, blood vessels and organs and only your nerves remain --- you would still be recognizable( a little faints perhaps, but recognizable). That should give you an idea of how numerous your nerves and how complexed the nervous system is .

 

DAMAGE

 

Damage to the brain or spinal cord could last for a lifetime. A few examples
A baby born brain damaged or retarded unable to heal or grow fully
A stroke victim who has suffered brain damage and can become permanently disabled
An accident where someone broke their back and damaged their spinal cord and become a paraplegic or quadriplegic . Healing of the brain and or spinal cord may or may not occur . If some healing does seem to occur, it is not the growing of nerve cells but the older nerves cells learning to take over the function of damaged cells .

PROTECTION

 

In order to protect the delicate brain and spinal cord, Nature wrapped them in bone . The brain is completely surrounded by bone known as the skull . The spinal cord is surrounded by 33 rings of bone called vertebrae . These bones are stacked up like blocks in a chimney or doughnuts with holes in the middle all lined up . It is through this canal that the spinal cord travels . This stacked of bones is called the Spinal Column .


THE SPINAL COLUMN

 

When the ancient Greeks looked at people's backs they saw a lot of bumps going from the neck down to the hips in the center of the back --- the same as we see today . They thought these bumps resembled thorns, so they called them "spina" which is Greek for thorn . That is how we get the word "spine". The individual bones of the spinal column are called vertebra from the Latin word vertere - to turn . The spinal column is divided into sections Cervicals Thoracics Lumbars Sacrum Coccyx
 

Spinal Column Cervical

CERVICALS

 

Cervical Spine ( The Neck )
All mammals have seven neck bones also referred to as cervical vertebrae . That means that the giraffe, the human and a tiny mouse all have the same number of cervical vertebrae .
The first cervical vertebra is directly beneath the skull . It is called the "atlas" because it holds the globe of the skull just as the mythological god Atlas held up the globe of the earth .
The second cervical vertebra also has a special name, the "axis" . It is responsible for a lot of the motion of the head (e.g. head turning and head tilting).
The seven cervical vertebrae have numerical names; atlas is known as C-1, the axis is C-2 and the third vertebra as C-3, then C-4, C-5, C-6 and C-7 . Sometimes C-7 is called Vertebra Promin (the prominent vertebra) because it sticks out at the bottom of the neck . Because of anatomical differences in people, the vertebra promin may be higher at C-6 or a little lower at the first thoracic vertebra T-1 .

THORACICS

 

Thoracic Spine ( The Midback )
The thoracic vertebrae are 12 in number and they are named as so T-1, T-2, T-3, all the way to T-12 . The ribs are attached to them, you can follow the path around from your front or your sides to the back . You can feel where they are connected to the thoracic vertebrae . A lot of the person's twisting and bending action comes from this part of the spine All your internal organs are fastened to this part of your body

 

LUMBARS

 

Lumbar Spine ( The Lowback )
There are five lumbar vertebrae L-1, L-2, L-3, L-4 and L-5 . They are the biggest, thickest and most massive of all the vertebrae . Being at the bottom of the spinal column, nature design them that way because they have the most weight to hold( the weight of the human head and all of the upper body ).

SACRUM

 

Sacrum
Under the lumbar spine you will find the sacrum, a triangular shaped bone made up of five fused vertebrae . The sacrum connects to the ilia to make up the pelvis (the hips). It acts as a keystone to lock the two iliums together to form a stable foundation for the structure ( the spine ) to rest on . The nervous system passes through it to innervate internal organs and the lower part of the body . As part of the pelvis it also allows the spinal column to move and bend .

COCCYX

Coccyx ( The Tailbone )
The final part of the spinal column is a little piece of bone made of four fused vertebrae . It is called the coccyx( from the Greek word kokkyx - meaning cuckoo -the early anatomist thought it resembled the beak of a cuckoo bird ). They say it is what is left of the human tailbone . From studying the human form science has recorded human babies being born with an extra coccyx bones that grow outside the body -- a human tail . They are usually small and medically/surgically removed . Internally and externally the coccyx nerves innervate the groin and buttocks region of the body .


 

Total sum of the spinal column

 

So your vertebral column a.k.a spine, spinal column, backbone, back, is made up of the following:

Cervical bones 7 Vertebrae in the neck
Thoracics bones 12 Vertebrae in the mid back
Lumbar Bones 5 Vertebrae in the lowback
Coccyx Bones 4 Vertebrae fused as one Tail Bone
Total number of the vertebral segments:
7 + 12 + 5 24 Moveable Vertebrae in the Human Spine
5 + 4 9 fused Vertebrae in the Human Spine
Totaling to:
Totaling to 33 vertebral segments that have been designed to carry the human frame.

Spinal Column

DISC

Disk

N = is the nucleus allows the spine/the body to move in different directions                       
A = is the annulus fibers allows the spine/the body to twist and turn when active

Between the bodies of each vertebra are jelly-like masses called discs/disks . The disc is made up of mostly water and fluid mass . The outside fibrous layers are much like rings of a tree . These layers are called the annulus or annulus fibers . The annulus is shaped accordingly to help the curves within the spinal column . In the middle of the disc is another fluid mass called the nucleus, the nucleus is spherical in shape allowing itself to be push backwards when the spine is bending forward and it pushes forwards when the spine is bending backwards . The discs act as shock absorbers and allows the upper body to be flexible, allowing normal motion to take place . Discs are ligaments . Two other important ligaments (the anterior spinal ligament and the posterior spinal ligament) along with the 23 discs allow the human frame to be an erected structure .The discs permit flexibility and agility when an individual is in activity (e.g. playing sport, duties of work, etc. ).

Disk Problems

PELVIS

 

Pelvis (the hips)

Pelvis


ILIA

 

The Ilium (there are two ) is one of the bones that make up the pelvis . It is a wide bone so as to carrying the groin of the human body . It also serves to support the flank of the human frame . It is where the spinal nerves pass through to reach the legs and lower parts of the human body . The ilia is plural for ilium .

SACRUM

 

Sacrum
Under the lumbar spine you will find the sacrum, a triangular shaped bone made up of five fused vertebrae . The sacrum connects to the ilia to make up the pelvis (the hips). It acts as a keystone to lock the two iliums together to form a stable foundation for the structure ( the spine ) to rest on . The sacrum is what connects the spinal column to the pelvis . As part of the pelvis it also allows the spinal column/body to move and bend .
 

COCCYX

 

Coccyx ( The Tailbone )
The final part of the pelvis is a little piece of bone made of four fused vertebrae . It is called the coccyx( from the Greek word kokkyx - meaning cuckoo -the early anatomist thought it resembled the beak of a cuckoo bird ). They say it is what is left of the human tailbone . From studying the human form science has recorded human babies being born with an extra coccyx bones that grow outside the body -- a human tail . They are usually small and medically/surgically removed . Internally and externally the coccyx nerves innervate the groin and buttocks region of the body . The coccyx is what connects the spinal column to the pelvis . As part of the pelvis it also allows the spinal column/body to move and bend .

The sacrum and ilia make up the pelvis . One purpose of the pelvis is to transmit weight of the upper body onto the legs . The weight is divided onto each hip and is then transferred to each leg. The pelvis also dissipates the force from gravity (the force travelling up the legs).The pelvis is a big part of keeping the spine in the "up-right" position and provides a means of moving the weight of a human being, around. Another reason the pelvis is important is its design, for the female, the sacroiliac joints participate in the labour of childbearing .

Functions of the Human Spinal Column and Pelvis
(function of the back and hips)
When the spinal column and/or pelvis loses its natural balance and alignment, it can put stress on the spinal cord and spinals nerves or on the brain, causing a loss of health or wholeness . Chiropractic terms this as "DIS-EASE" The chiropractor's role is to remove stress from the spinal column / nervous system and to help restore health and wholeness to the human mind and body .
Here are only some of the duties of the human spinal column and pelvis .

  • TO PROTECT THE BRAIN AND SPINAL CORD
  • TO CARRYING THE HEAD
  • CAPABLE OR BEING FIRM AND STURDY
  • CAPABLE OF BEING FLEXIBILE AND AGILE
  • TO SERVE AS ATTACHMENTS TO MUSCLE
  • TO SERVE AS ATTACHMENTS AND SUPPORT INTERNAL ORGANS
  • TO SUPPORT THE PECTORAL AND PELVIC GIRDLES
  • TO SUPPORT THE RIBS
  • TO PERMIT THE HUMAN BODY TO STAND AND MOVE
  • TO PERMIT THE HUMAN BODY TO BEND, STOOP, TWIST
  • ALLOWS THE HUMAN BODY TO HAVE MOBILITY (e.g. to climb, jump, reach)

Resiliency is the ability to absorb and dissipate shock . The 23 discs and the curves of the spinal column is what allows resiliency to exists within the human body . The discs and curves are the contributing factors to absorb shock so it can protect the brain, internal organs and other body parts .

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