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The Nervous System (Major Parts and Functions of the Spinal Cord (Two…

- - - - C4 - T2 - nerves to and from upper limbs
    - - T9 - T12 - nerves to and from lower limbs
- - - - Made of:
        
        Medulla Oblongata
        
        Pons
        
        Midbrain
  - - - A narrow, worm shaped structure in between both sides of the cerebellum
    - - Convolutions (bumps)
    - - Grooves
    - - Deeper grooves
  - - - Dark outer area consists of gray matter, contains bell bodies of 75% of all neurons in the neurons system
    - - Separates brain into right and left cerebral hemispheres
    - - Connects both hemispheres
    - - Frontal
        
        Forehead
      - Temporal
        
        Above ears
      - Parietal
        
        Top sides
      - Occipital
        
        Back
- - - - Contains nucleus and other organelles
    - - Receiving portions, short, tapered, and highly branched
  - - - Multipolar neurons in CNS that forms links between other neurons
- - - - Cranium and vertebral column
  - - - Most outer
    - - "Spiderweb" middle
    - - Inner
- - - - Carry information from body towards CNS
    - - Carry instructions away from CNS to target or effector organs of body
- - - - In front of central sulcus in precentral gyrus
      - Controls voluntary actions of specific muscles or groups of muscles movements for speech
      - Broca's Area
        
        Coordinates muscle movements for speech
      - Association Areas
        
        Concerned with more complex integrative functions, such as memory, emotions, reasoning, will, judgement, and intelligence
      - Language comprehension
  - - - Behind central sulcus in postcentral gyrus
      - Receives impulses for touch, pain, proprioception and temperature
  - - - Vision
  - - - Smell
    - - Hearing
- - - - Inflammation of meninges
  - - - Fluid filled area between dura and subarachnoid maters
- - - - Epinephrine and Norepinephrine
    - - Eyes, lungs, heart, etc.
  - - - Acetylcholine
    - - Salivary glands, digestive, and reproductive organs