the nervous system, components of the nervous system, central nervous system, brain, spinal cord, parts of brain

1. NERVOUS SYSTEM

2. NERVOUS SYSTEM (DIAGRAM)

3. COMPONENTS OF NERVOUS
SYSTEM
CENTRALNERVOUSSYSTEM(CNS) PERIPHERALNERVOUSSYSTEM(PNS) AUTONOMICNERVOUSSYSTEM(ANS)
NERVOUSSYSTEM

4. CENTRAL NERVOUS
SYSTEM
BRAIN SPINAL CORD
CENTRAL NERVOUS SYSTEM
BRAIN: LARGEST PART, TWO
HEMISPHERES, HIGHLY
CONVOLUTED, OUTER GREY
AND INNER WHITE
SPINAL CORD: LIES WITHIN
NEURAL CANAL INNER GREY
AND OUTER WHITE. IT IS THE
CENTRE OF REFLEX ACTION

5. PARTS OF BRAIN
CEREBRUM CEREBELLUM MEDULLA OBLONGATA
BRAIN

6. CEREBRUM:
IT CONTROLS CONSCIOUS AND UNCONSCIOUS MIND
IT ALSO CONTROLS MEMORY AND REASONING
CEREBELLUM
o MAINTAINS BODY BALANCE
o IT COORDINATES MUSCULAR ACTIVITY
MEDULLA OBLOMGATA
 CONTROLS INVOLUNTARYACTIONS LIKE BEATING OF HEART
 RESPIRATION
 BLOOD PRESSURE

7. PERIPHERAL NERVOUS
SYSTEM
CRAINAL NERVES
(12 PAIRS)
SPINAL NERVES
(31 PAIRS)
PNS

8. AUTOMOMIC NERVOUS
SYSTEM
SYMPATHETIC PARASYMPATHETIC
ANS

9. SYMPATHETIC :
 DILATES PUPIL
 CONSTRICTS BLOOD VESELS OF SKIN
 STIMULATES SWEAT GLANDS
ACCELERATES HEART BEAT
PARASYMPATHETIC:
 RESTORES NORMAL BODY CONDITIONS