Science long quiz

• The main processing center for the entire nervous system

  Central Nervous System
• Two main components of Central Nervous System

  Brain and Spinal cord
• An organ located within the skull. Function as organizer and distributor of information for the body.

  Brain
• Three main part of the brain

  Cerebrum, Cerebellum, Brain stem
• upper part of the brain that controls activity and thoughts.

  Cerebrum
• control posture, balance, and coordinations

  Cerebellum
• Connects the brain to the spinal cord and controls automatic function.

  Brain stem
• Serves as channel for signal between the brain and the rest of the body, control musculoskeletal reflexes.

  Spinal cord
• Connects the central nervous system to the organs and limbs

  Peripheral Nervous System
• Two main divisions of PNS:

  Somatic Nervous System and Autonomic Nervous System
• This system is associated with the voluntary control of the body movements.

  Somatic Nervous System
• Two main parts of Somatic Nervous System:


  Spinal Nerves and Cranial Nerves
• nerves that carry motor and sensory signals between the spinal cord and the body.


  Spinal Nerves.
• the nerve fibers that Carry information into and out of the brain stem.

  Cranial nerves
• This system os associated with the involuntary control of body movements.

  Autonomic Nervous System
• It is activated when the body is in a dynamic role or under stress

  Sympathetic Nervous System
• It maintains body functions and restores the body to relaxed or normal mode.

  Parasympathetic Nervous System
• Two subdivisions of Autonomic Nervous System:

  Sympathetic Nervous System and Parasympathetic Nervous System
• Voluntary movements


  your aware on your movements
• Involuntary movements

  Unintentionall movements