Zusammenfassung der Ressource
The Nervous System
- Central Nervous System
- Brain
- directs psychological activity
- maintains life support
- Spinal Chord
- receives sensory input
- sends information to brain
- responds with motor output
- Peripheral Nervous System
- Somatic Nervous System
- conveys sensory info. to CNS
- sends major messages to muscles
- Autonomic Nervous System
- serves basic life functions such as
- beating of the heart and
- response to stress, involuntary
- Sympathetic Nervous System
- readies the body in response to threat
- Parasympathetic Nervous System
- calms the body down