Nervous system

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Definition  The nervous system consists of brain coma spinal cord peripheral nerve. The nerves health to transmit the message grow the impulses from different part of the body to the brain and spinal cord. The nervous system in divided in following part------- Central nervous system Peripheral nervous system Autonomic nervous system Central nervous system It consists then and spinal cord. Peripheral nervous system It consists of fall nervous outside the brain or spinal cord. Autonomic nervous system It consists of sympathetic and parasympathetic. Neurone  The nervous consist of vast number of cell called neurone. Neurone is the structural and fundamental unit of the nervous system Play Store the neurone are supported by a special type of connective tissue is called neuroglia, each neurone have a cell body and its process. Cell body The nerve cell are vary considered size and shape but they are too small cell body from the grey matter of The nervous system an
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Human Skeleton Systems

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                    *Defination 

The skeleton system consist of the bone of the skeleton there joints and the skeleton muscles that move the body.

                        * Bone *

Bone are the type of tissue which support the body, providing body framework and help the body movement.

        *Function of bone*  

     1. Providing body framework.
2.Giving attachment to muscle.
3.The allowing movement of the body as whole and of part of the body by forming joint that are moved by muscle .
4.Forming the boundaries of the cranial,thoracic and pelvic cavity,protecting the organ they contain.
5.Hemopoisis the production of blood cells in red bone marrow.                  

          *   Type of bone  *

 Bone are the classifieds as long bone ,short bone,irregular bone flat and sesamoid bone .  

 1.Long bone - These consist of a shaft and two extremities as the name suggests ,these bone are longer then they are wide -  Femur,Tibia ,Fibula. 
2.  Short bone-  Carpals 
3.   Irregular bone - Vertebrae
4.   Flat bone- Sternum,Ribs
5.   Sesamoid bone- Patella 

       *Part of skeleton system*
           

 
There are two parts of skeleton system --
 1.  Axial skeleton system  

 * Skull - 22
* Ear - 6
* Hyoid - 1
* Sternum - 1
* Thoracic case - 24 
* Vertebrae column - 26

 2.Appendicular skeleton system --

 Upper limb -------
*Clavicle - 2 
* Scapula - 2
* Humerus - 2 
* Radius - 2
* Ulna - 2
*Carpals - 16 
*Metacarpals - 10 
*Phalanges - 28

 Pelvic -- 2

 Lower limb ------
* Femur - 2
* Tibia - 2
* Fibula - 2
* Patella - 2
*Tarsal - 14 
* Metatarsal - 10
 * Phalanges - 28


Total number of bone --- 206
Axial skeleton system

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