week 2 quiz 2 3

• Central Nervous System - serve as the main processing center for the entire nervous system.

  • Brain
  • Spinal Cord
• Brain - This is an organ located within the skull that function as organizer and distributor of information for the body, has main three parts :

  • Cerebrum
  • Cerebellum
  • Spinal Cord
• Cerebrum - large, upper part of the brain that controls activity and thought
• Spinal Cord - this serve as a channel for signals between the brain and the rest of the body, and control simple moscow loskeletal reflexes without input from the brain.
• Brain Stem - the part that connects the brain to the spinal cord and controls automatic functions such as breathing, digestion, heart rate, and blood pressure
• Cerebellum - the under part the cerebrum that controls posture, balance, and coordination
• Peripheral Nervous System  - connects the central nervous system to the organ and limbs

  • Somatic Nervous System
  • Autonomic Nervous System
• Somatic Nervous System - this system is associated with the voluntary control of the body movement and has two main parts :

  • Spinal Nerves
  • Cranial Nerves
• Spinal Nerves - the nerves that carry motor and sensor signals between the spinal cord and the body
• Cranial Nerves - the nerve fibers that carry information into and out of the brain stem
• Autonomic Nervous System - this system is associated with involuntary control of body movement and has two subdivisions

  • Sympathetic
  • Parasympathetic
• Parasympathetic - it maintains body function and restore the body to normal or relaxed mode.
• Sympathetic - it is activated when the body is in a dynamic role of stress