Sensitivity and coordination by Paula
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Sensitivity and coordination by Paula

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Sensitivity and coordination by Paula Presentation Transcript

  • 1. STIMULIAstimulus is anything yousee,touch,smell or tasteStimuli can be: Internal stimuli External stimuli
  • 2. RECEPTORS The body has different receptors to receive different types of stimulus. Internal receptors External receptors
  • 3. RESPONSE A response is the body answer to a stimulus.There are two different types ofresponses:Muscular responseGlandular response
  • 4. SIGHT The eye is the organ of sight
  • 5. SIGHT (2)  First light goes throught the cornea  Then light passes throught the pupil,the opening of the iris.  After that light passes throught the lens wich focuses the image on the retina  Finally in the retina travels to the brain throught the optic nerve.
  • 6. SMELL The nose is the organ of smellThe receptors of smell are in the pituitary gland,inside the nostrilsnostrils
  • 7. HEARING The ear is the organ hearing The outer ear includes the ear and ear canal The middle ear includes the eardrum and the small bones The inner ear includes the cochlea and the auditory nerve
  • 8. HEARING (2)  First the outer ear receives sounds  Then the middle ear changes sounds into vibrations  Finally the inner ear changes vibrations into nerve impulses that go to the brain
  • 9. TOUCH AND TASTEThe skin is the Te tonge is the organ of touch. organ of taste.It is made up of The receptors three layers. of taste are in the taste buds
  • 10. THE NERVOUS SYSTEMThe nervous system is made up of nerve centers and nerves.Nerve centers intrerpret the imformation and develop response,forming the central nervous system.
  • 11. PARTS OF CENTRAL NERVOUSSYSTEMThe central nervous system has two different parts: The brain is inside the skull.it is made up of the cerebrum,the cerebrellum and the brain stem The spinal cord is made up of many neurons and it is protect by vertebrates.
  • 12. PARTS OF PARIPHERALNERVOUS SYSTEMThe pariphetal nervous system has two different parts: Sensory nerves Motor nerves
  • 13. NEURONSBoth the central and peripheral nervous system are made up of specialised cells called neurons. cell body axons dentrites
  • 14. VOLUNTARY ANDINVOLUNTARY MOVEMENTSOur bodies react to stimuli making voluntary or involuntary movements. Voluntary movements:the brain produces a response in the case of voluntary movements. Involuntary movements:the spinalcord produces a response in the case ofinvoluntary movements.
  • 15. THE SKELETON The skeleton is made up of all the bones of the body. Head bones: skull bones and facial bones Trunk bones : spine and rib cage Limb bones: upper limb bones and lower limb bones
  • 16. THE MUSCULATURE The musculature is the set of muscles in the body Head muscles: masseter,buccinator and orbicular Trunk muscles: sternocleidomastoid,abdominal,pectoral,intercost al,trapezius limb muscles: bicep,tricep,deltoy,quadriceps,gluteus,calf muscles.