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Nervous System (Senses (Eye Components (Fibrous Layer (Sclera, Cornea),…

- - - - Stimulus comes from environment
    - - Stimulus origin is in internal organs
    - - Stimulus from our muscles (including our tendons, ligaments and joints)
  - - - Temperature Receptors
    - - Light Sensitive
    - - Sensitive to Chemicals
    - - Pain Receptors
    - - Sensitive to pressure, touch, vibration
    - - Blood Pressure
  - - - Sclera
      - Cornea
    - - Choroid
    - - Retina
    - - Cornea - Pupil - Lens - Posterior Segment Vitrous Humor - Retina - Optic Nerve - Optic Chiasm - Optic Tract - Midbrain - Thalamus - Primary Visual Cortex in Occipital Lobe
  - - - Olfactory receptors - Olfactory Sensory Neuron within the Olfactory Bulb - Olfactory Tract - Limbic System
  - - - Cranial Nerves (VII, IX, X) - Medulla Oblongata - Thalamus - Gustatory Cortex in the Insula
  - - - Cochlear Branch of CN VIII - Medulla Oblongata - Pons - Midbrain - Thalamus - Primary Auditory Cortex - Temporal Lobe
- - - - Output to skeletal muscle
        
        Skeletal Muscle
    - - Input from skin, skeletal muscle, joints, limbs
        
        Skin
        
        Skeletal Muscle
        
        Eyes
        
        Hair
  - - - Mainly to contents of ventral body cavity
      - Smooth muscle
      - Glands
      - Blood Vessel Walls
      - Respiratory System
      - Digestive System
      - Urinary System
      - Reproductive System
      - Cardiac Muscle
      - Sweat Glands
    - - Input from ventral body cavity contents
      - Stomach
      - Tongue
- - - - Efferent Multipolar, cell bodies in CNS
    - - Afferent, majority Unipolar, some bipolar
    - - Association Neurons, between neurons in CNS. 99.98% of all neurons in body
- - - - Bundle of fascicles
    - - Tough fibrous CT that surrounds entire nerve
    - - Fibrous CT that covers each fascicle
    - - Part of neuron that carries a signal
    - - Insulation around axon
    - - Bundle of axons
  - - - Most numerous; many processes that contact neurons and capillaries, supports neurons + helps maintain chemical balance in CNS
    - - Phagocytes; remove microbes or damaged nerve tissue in CNS
    - - Bring spaces filled with CSF in CNS
    - - Structurally Supportive, regulates exchange of materials in fat of neuron cell body in neurons of ganglia
    - - Bind the CNS neurons together and insulate the axons, form myelin sheath in CNS
    - - Insulate PNS axons