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Human nervous system: |
Human nervous system: |
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A) '''Central nervous system''' ([[CNS]])– consists of the brain and the spinal cord |
A) '''Central nervous system''' ([[CNS]])– consists of the [[brain]] and the [[spinal cord]] |
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#Somatic system (skeletal) – nerves (motor and sensory) that control the muscular system and the external sensory receptors |
#Somatic system (skeletal) – nerves (motor and sensory) that control the muscular system and the external sensory receptors |
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#Autonomic system - autonomic motor neurons that control the internal organs (such as heart, arteries, gastrointestinal tract, glands..) |
#Autonomic system - autonomic motor neurons that control the internal organs (such as heart, arteries, gastrointestinal tract, glands..) |
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#Sympathetic system - responds to stressful stimulation – prepares the body for [[Fight or Flight|fight or flight]] response |
#:Sympathetic system - responds to stressful stimulation – prepares the body for [[Fight or Flight|fight or flight]] response |
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#:Parasympathetic system – involved in [[relaxation]] and has an energy conserving function |
#:Parasympathetic system – involved in [[relaxation]] and has an energy conserving function |
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Latest revision as of 11:42, 14 November 2005
Human nervous system:
A) Central nervous system (CNS)– consists of the brain and the spinal cord
B) Peripheral nervous system (PNS) – composed of nerves which connect the CNS to the other parts of the body.
- Somatic system (skeletal) – nerves (motor and sensory) that control the muscular system and the external sensory receptors
- Autonomic system - autonomic motor neurons that control the internal organs (such as heart, arteries, gastrointestinal tract, glands..)
- Sympathetic system - responds to stressful stimulation – prepares the body for fight or flight response
- Parasympathetic system – involved in relaxation and has an energy conserving function