Please enable JavaScript.

Coggle requires JavaScript to display documents.

Senses (EYE tissue/ vision (refraction. occurs when light hits your cornea…

- - - - papillae
  - - - neurons =olfactory receptors,nasal cavity lies below this epithelium.
        
        olfactory receptor axons run through the cribriform plate
        
        olfactory foramina --> enters the olfactory bulb.
- - - - watery fluid that is in the anterior part of the eye in front of the lens
    - - gel-like fluid that fills the entire posterior chamber of the eye, behind the lens
  - - - CORNEA = transparent but still thick in order to allow light to pass through.
      - Sclera= whiter outer covering that allows for extrinsic muscle attachment --front of the eye joining to the cornea.
      - OPTIC NERVE= CN II, carries the retinal ganglionic cell axons back to the brain
    - - Choroid coat - posterior part of the eyeball (between the sclera and the retina). dark pigments which help to absorb light If this absorption didn't occur
      - Ciliary body - this is composed of muscles, processes, and ligaments that are arranged in a ring around the lens. pull on the lens via the suspensory ligaments= lens to change shape.when the ciliary muscle contracts, it causes the suspensory ligament to have less tension on it so the lens is actually pulled less.
      - Iris - colored part. black hole= the pupil. The autonomic nervous system controls dilation or constriction of the pupils.
    - - Retina - vision
- - - - = lacrimal gland
      - superior lacrimal canal
      - d = lacrimal sac
      - f = inferior lacrimal canal
      - = nasolacrimal canal
- - - - Pigment layer - back of the retina ,choroid. light -->posterior layer - absorbs light =>dark pigment action potential travels through the neurons to the front layer of the retina.
      - Rods and cones - sensory receptors--> photoreceptors. rods = black and white vision/peripheral vision. cones = color vision/center of our vision.
      - Bipolar cells - neurons in senses. action potential from the rods and cones and transmits it to the next layer.
      - Ganglion cells - inner retina; axons take action potential along cells to the optic nerve. The optic nerve is offset in the back of our eye where the optic nerve leaves = blind spot/optic disk, only cranial nerve.
  - - - cones in the center for more clear color vision=fovea centralis. sensitive to red, blue or green
- - - - air pressure waves
        
        vestibule tells us what position we have gotten into, and then tells us if that overall position has changed.
        
        Static Position and the Vestibule
        
        utricle and the saccule.
        
        3-D
        
        three semicircular canals
        
        ampulla hair cells that respond to acceleration and velocity.
      - sound wave relates to the pitch (high or low) and amplitude of a sound wave refers to the loudnes
    - - sound wave of high or low pressure->tympanic membrane in response->vibration amplify across ossicles->vibrations against ovale standing wave in ventracles->pressure bends cochlear duct cause hair basilar membrane to vibrate
    - - sense of direction up, down, side
        
        static laying/standing
        
        Dynamic = speed
        
        acceleration= change of speed
    - - crystals CA+ carbonate