Nervous System

ORGANIZATION OF NERVOUS SYSTEM

Nervous System
a) Central Nervous System: Interneuron
- Brain (refer The brain)
- Spinal cord


SPINAL CORD
- protected by vertebrae
- composed of:
a) Cervical
b) Thoraxic
c) Lumbar
d) Sacrum
e) Coccyx
- Function:

• link the CNS and PNS
• control reflex action

REFLEX ACTION

- spontaneous

- fast

- unplanned event/ sequence

- Function: Protection

- Component:

a) Sensory neuron: Sensory organ

b) Interneuron: Spinal cord (integrating center)

c) Motor neuron: Muscle & glands

b) Peripheral Nervous System: Sensory neuron & motor neuron
- Autonomic Nervous System
- Somatic Nervous System
- Enteric Nervous System