The Senses

• Components of the skin

  Epidermis

  Dermis

  Hyper dermis
• Epidermis 


  Provides a waterproof barrier/ protective shield
• Dermis 


  Gives structure/ support/ flexibility and strength
• Hyperdermis 


  Provides insulation/ padding
• Prey animals have an advanced sense of taste

  Have a large number of taste buds

  To suit their diet and assist identifying different food flavours and tastes and tend to prefer food that taste sweeter rather than bitter
• Parts of the ear 


  Cochlea

  Pinna

  Ear drum/ Tympanic membrane

  Round window

  Oval Window

  Hammer/ malleus

  Eustachian tubes

  Anvil/ incus

  Stirrup/ stapes
• Echolocation- Bats 


  To navigate/ find food in the dark

  When sound waves hit an object, they produce echoes

  The echo bounces off the object and returns to the bats ears
• Echolocation - Dolphins 


  To see by interpretation the echoes of sound waves that bounce off objects nearby, they return to the dolphins as echoes.
• Ciliary Body


  Controls the shape of the lens to enable focus
• Optic Nerve 


  Carries visual messages from retina to brain
• Retina 


  Senses light and creates electrical impulses/ messages
• Pupil 


  changes size to adjust to amount of light available and becomes smaller in bright light and becomes larger in low light