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Messages or stimuli that are carried by neurons

Reflex action

Voluntary action

Brain

Sensory

neurons

Motor neuron

s

reseptor efectorstimulus

respone

Spinal cord

Sensory

neurons

Motor neuron

s

reseptor efectorstimulus

respone

Impuls

Cerebrum1

Cerebellum2

The Brain Stem(Medulla Oblongata)

3

The Spinal Cord(Medulla Spinalis)

4

1. Centrally control voluntary actions

2. Centrally control sense organs3. The control of memory4. The control of intelligence5. The control of emotionThe control of body balance

1.The control of the heartbeat and respiration

2.The control of saltpeter, sneezing, cough &yawn

Centrally control reflex actions

Somatic nervous system

1

Autonomic nervous system

2

- 12 pairs of cranial nerves- 31 pairs of spinal nerve

- Sympathetic nerve- Parasympathetic nerve

It is caused by the dilatation of blood vessels at the cerebral membrane (meninges), but it part of a symptom of another ailment

Due to the disturbance of the electrical impulse conductor of the nerve cells,such as a brain tumor, trauma in the head, use of drugs or a congenital brain defect

Experiences confusion and memory loss

The cause of this disease is the imbalance of chemical substance in the nervous system.

The symptoms is: trembling of the arm, retardation of movements, and stiff muscles

Caused by the polio virus infection in the spinal cord

Caused by a virus infection or bacteria in the meninges (cerebral membrane and spinal cord)