The document discusses the main parts and functions of the nervous system. It describes the central nervous system as consisting of the brain and spinal cord. The peripheral nervous system connects the central nervous system to the rest of the body and consists of cranial nerves, spinal nerves, and the autonomic nervous system. The autonomic nervous system regulates involuntary body functions and is divided into the sympathetic and parasympathetic nervous systems, which work in opposition to activate the fight-or-flight response or rest and digest responses, respectively.

1. NERVOUS SYSTEM
INTRODUCTION
OF
BY : YASH ANGHAN

2. Parts Of Nervous System
• CENTRAL NERVOUS SYSTEM • PERIPHERAL NERVOUS SYSTEM
BRAIN AND SPINAL CORD CRANIAL NERVES AND SPINAL NERVES

4. PARTS OF BRAIN

5. Sagittal Saction Of Brain

6. BASICFUNCTIONS OF THE BRAIN
Reasoning and thaught
Balance
Equilobrium
Posture,
muscle tone

7. PARTS AND FUNCTIONS DIENCEPHALON
It is a relay satation
That passes
impulses to the
brain from
brainstem
Controls and ragulates
basic functions like
Apatite, Temperature,
Water balance,
And Sleep control
Blood vessels dilatation &
constriction
Emotions like
anger 😤,
pain😨 ,
pleasure 😊,
Fear 😱.
Helps to.maintain proper environment in the body
according to external and internal needs

8. BRAINSTEM
Responcible for certain
eye and auditary reflexes
Certainly Responsible for actional
reflexes like chewing, saliva
producting and Testing
Regulates Basic functions that are
survial bodily need

9. SPINAL CORD
The spinal cord is link between brain and all Nerves from rest
of the body parts
MAINLY DIVIDED IN FOUR PARTS
1. CERVICAL SPINE
2. THORACIC SPINE
3. LUMBAR SPINE
4. SPINAL NERVES ( AFFERENT AND EFFRANT )
AFFERENT SPINAL NERVES
Carries information from the spinal cord to the body
EFFRANT SPINAL NERVES
Carries information from the body to the spinal cord

10. PERIPHERAL NERVOUS SYSTEM
• PARTS OF PEREPHARAL NERVOUS SYSTEM
A . Somatic Nervous System B. Autonomic Nervous System
• Somatic nervous system is responsible for carrying
motor and sensory responses.
• It is made up of nerves that connects skin, skeletal
muscles and sensory organs.
• Somatic system also responsible for nearly all
voluntary movements.
• As well as processes all the siltimuli from external
sensory system. Like hearing, sight and touch.

11. • Somatic nervous system is responsible for carrying motor and sensory
responses.
• It is made up of nerves that connects skin, skeletal muscles and sensory
organs.
• Somatic system also responsible for nearly all voluntary movements.
• As well as processes all the siltimuli from external sensory system. Like
hearing, sight and touch.
• All the condition processes done by two types of neurons
• A. AFFERENT NEURONS : 📩 simply means invert means it takes stimuli from
the nerves to the CNS.
• B. EFFERENT NEIRONS : 📤 simply means outward means it takes the stimuli
from the CNS to muscle fibers.
SOMATIC NERVOUS SYSTEM

12. Autonomic Nervous System
• Sympathetic NervousSystem • Parasympathetic Nervous System
Fight or Flight Rest and Digest
• It revs up the body to
either defend your self or
escape the threat
• It bring back the all
system to the normal
functioning state