By: Tina A. Sayani

1
Sense Organs

• By Tina A. Sayani
• Marcus Collins

2
Structure of the ear

• Semicircular canals
• Vestibular apparatus
• Auditory nerve
• Cochlea
• Oval window
• Round window
• Tympanic cavity
• Eustachian
• Ossifies
• Eardrum

3
Function of the ear

• Collects sound waves and channels them along the
  eternal auditory meatus. The eardrum vibrates and
  mechanical waves are transmitted by the ossicles
  three small bones in the ear. Inside the inner
  ear the cochlea are coiled tube filled with
  fluids.

4
Structure of the Eye

• Cornea
• Optic nerve
• Sclerotic membrane
• Choroids membrane
• Retina

5
Function of the Eye

• Light sensitive cells are located in the retina
  area. Where there are the most light sensitive
  cells gives us cleat vision. There are no light
  sensitive cells where the nerves pass thought the
  retina humor and vitreous humor help the eyes
  hold its shapes.

6
Eye detectect light/objects

• Process of seeing begins when light enter the eye
  and effects the light sensitive cells in the
  retina know as cones and cods. Cones let the eyes
  see color and fine detail vision in dim light.
  Impulse from the cones and rod go thought the
  optic nerves and the brain and tiny currents.

7
Myopia eye disease

• Symptoms Nearsighted people often have headaches
  or eyes strain, and might squint or feel fatigues
  when driving or playing sports.

• Causes Myopia occurs when the eyeballs is
  slightly longer than usual from front to back
  this causes light rays to focus at point in front
  of the retina.

Treatment Nearsightedness may be corrected with glasses contact lenses or refrati surgery. Depending on your vision problem you may need to wear contact.
8
Structure/function of the tongue

• The tongue is surrounded by the bones or the face
  the upper maxilla the mandible and the palatine
  and the teeth the tongue has two main parts its
  muscle and its taste buds. 10,000tiny chemical
  sensing bodies which is taste buds we experience
  taste when food dissolved in the saliva.
• Taste Food molecules and taste hair causes a
  reaction that stimulates nerve at the cells root
  which send nerve impulses to the brain

Tip salty and sweet Middle sour Back bitter
9
Detects Sound

• Hair like sensory receptors are simulated by
  vibrations of the basilar membrane. As a result
  they generate nerve impulse which very with the
  extent of the vibration of the of membrane.

10
Vocabulary

• Cornea-the transparent convex anterior portion of
  the outer fibrosis.
• Retina-a trademark for a preparation of retinoic
  acid
• Rods-an elongated bacterium a bacillus
• Cones-one of the photoreceptors in the retina of
  the eye that is responsible for daylight and
  color vision
• Optic nerve-a nerve that originates from the
  retina and passes out of the eye
• Nasal cavity-the cavity on either side of the
  nasal septum and extending from the nares to the
  pharynx
• Olfactory epithelium-pseudostratified epithelium
  that contains olfactory and nerve cells

• Olfactory bulb-the bulblike distal end of the
  olfactory lobe
• Olfactory- any of the specialized nucleated cells
  of the mucous membrane
• Taste buds-any of numerous spherical or ovoid
  clusters
• Taste-to distinguish the flavor of by taking into
  the mouth

11
VOCABULARY

• Ear- the vertebrate organ of hearing responsible
  for maintaining the equilibrium.
• Hammer- a band tool that has with a
  perpendicularly attached head of metal.
• Anvil- a heavy block of iron or steel with a
  smooth flat top
• stirrup- a flat based loop or ring hung from
  either side of a horse s saddle.
• semicircular canals- having the form of half
  of a circle .
• Auditory nerve- either of the eight pair of
  cranial nerves that divides to form the
  cochlear
• cochlea- a sprial shaped cavity of the inner
  ear that resembles a snail shell

• tympanic membrane a thin membrane separating
  the middle ear from the inner part.
• eyes- an organ of vision or light sensitivity
  
• iris the goddess of the rainbow and messenger
  of gods
• pupil- the apparently black circular opening
  in the center of the iris .