Unit 2 sensitivity and coordination teresa and laura s

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Unit 2 sensitivity and coordination teresa and laura s

  1. 1. Stimulus is anything you see,hear,touch, smell or taste . Can be : • Internal stimuli. • External stimuli.  The body has different receptors . • Internal receptors • External receptors 
  2. 2. A respose is the body’s answer to a stimulus. There are two types: • Muscular responses • Glandular responses 
  3. 3.    The eye is the organ of sight. Is made up of the eyeball and protected by the eyebrows, eyelids and eyelashes. cornea pupil      retina trough Process : 1. First light goes through the cornea. 2. Then light passes through the pupil. 3. After that light passes through the lens. 4. Finally information in the retina travels to the brain through the optic nerve .
  4. 4. The nose is the organ of smell.the receptors of smell are in the pituitary gland inside the nostrils. The parts are nostrils and pituitary glands. 
  5. 5. The ear is the organ of hearing it has three parts: • 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. 
  6. 6. PROCESSES: • 1.The outer ear receives sounds. 2.The middle ear changes sounds into vibrations. 3.The inner ear changes vibrations into into nerve impulses that go to the brain. • • vibration PARTS: Ear,ear canal ,eardrum,small bones,auditory nerve,cochlea. • er • • • • • 1
  7. 7.  The skin is the organ of touch. It is made up of three layers.
  8. 8.  The tongue is the organ of taste. The receptors of taste are in the taste buds.
  9. 9.    • •   The nervous system is made up of nerve centres and nerves. Nerves centres interpret the information and develop responses, forming the central nervous system. The central nervous system has two parts: The brain inside the skull. It is made up of the cerebrum, the cerebellum and the brain stem. The peripheral nervous system is made up of: Sensory nerves. Motors nerves.
  10. 10. Both the central and peripheral nervous systems are made up of specialised cells called neurons.  They are made up of a cell body, dendrites and axons. 
  11. 11. VOLUNTARY MOVEMENTS: The brain produces a response in the case of voluntay movements. INVOLUNTARY MOVEMENTS: The spinal cord produces a response in the case of involuntary movements.
  12. 12.  HEAD BONES TEMPORAL, OCCIPITAL, PARIETAL, FRONTAL. FACIAL BONES: NASAL, CHEEKBONE,JAWBONE.  TRUNK BONES STERNUM,RIBS, SPINE,HIPBONE  LIMB BONES UPPER LIMBS BONES CLAVICLE, SCAPULA, HUMERUS, ULNA,RADIUS, CARPAL, METACARPAL, PHALANGES. LOWER LIMBS BONES FEMUR, METATARSAL ,PHALANGES,TARSAL, FIBULA, TIBIA.
  13. 13. The joints are located where two or more bones meet. there are three types of joints: • Moveable joints. • Semi-moveable joints. • Fixed joints.
  14. 14. Tendons are made of flexible and fibrous tissue. They connect muscles to bones.
  15. 15. THE END PATRICIA SESMA LUCIA MARTIN TERESA ORTEGA LAURA PRIETO

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