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Nervous System
Central nervous system
-Brain
-Spinal Cord
Peripheral nervous system
-Cranial nerves
-Spinal nerves
*Human Nervous System Is An Important Control System In Body
Coordinate.
*The Functions Of Nervous System Are To Detect Stimuli And Send
Information As Form Of Impulses.
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What is an Involuntary Action
=Involuntary Action are action that occur immediately without
conscious control
What is Voluntary Action
=Are conscious action and conducted under one’s will.
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Sensory Organs
Humans Have Five Sensory Organs
-Eyes(Sense of sight)
-Ears(Sense of hearing)
-Nose(Sense of smell)

-Tongue(Sense of taste)
-Skin(Sense of touch)

*Parts Of Layers Of Eyes
-Outer Layer
-Middle Layer
-Inner Layer