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The Senses (Type of Stimulus (nociceptors: respond to pain (cutaneous…

- - - - rod cells: sensitive to light
      - cone cells: sensitive to color
- - - - dense connective tissue
      - protective
      - anchor for muscle
      - gives shape
    - - transparent
      - allows light into eye
      - helps to focus light
    - - vascular (lots of blood vessels)
      - nourishes other tunics; especially the retina
      - absorbs light (prevents light from scattering)
      - continuous with ciliary body (muscle changes the shape of the lens)
    - - contains photoreceptors (axons from receptors converge to become optic nerve)
      - color: more like tan
      - very thin and delicate
      - more rods than cones
- - - - tremendous amounts of water
      - function
        
        transmit light
        
        support posterior surface of lens
        
        help maintain intraocular pressure
  - - - nourishes lens
      - transmits light
      - maintains pressure/shape