Unit 2 sensitivity and coordination ana and devorah s

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Unit 2 sensitivity and coordination ana and devorah s

  1. 1. SENSITIVITY AND COORDINATION Ana Gazapo Mora Deborah Diego Carbajosa
  2. 2. Stimuli • Stimulus is anything you see,hear,touch,smell or taste. • Stimuli can be Internal or External.
  3. 3. Internal Stimuli
  4. 4. External Stimuli
  5. 5. Receptors • The body has different receptors : Internal and External
  6. 6. Responses • Response is the body´s answer to a stimulus • Responses can be Muscular or Glandular
  7. 7. Muscular Response
  8. 8. Glandular Response
  9. 9. Sight The eye is the organ of sight. It is made up of the eyeball, eyelids and eyelashes.
  10. 10. SMELL The nose is the organ of smell. The receptors of smell are in the pituitary gland, inside the nostrils.
  11. 11. Hearing The ear is the organ of hearing it has three parts: • The outer ear includes the ear and the ear canal • The middle ear includes the small bones and the eardrum. • The inner ear includes the cochlea and the auditory nerve
  12. 12. Touch & Taste TOUCH TASTE The skin is the organ of The tongue is the touch is made up of organ of taste the three layers. receptors of taste are in the taste buds.
  13. 13. What is the nervous system ?
  14. 14. THE NERVOUS SYSTEM The nervous system is made up of nerve centres and nerves
  15. 15. NEURONS • Both the central and the peripheral nervous systems are made up of specialised cells called neurons. • They are made up of a cell body, dendrites and axons.
  16. 16. VOLUNTARY AND INVOLUNTARY MOVEMENTS Our bodies react to stimuli making voluntary or involuntary movements
  17. 17. VOLUNTARY MOVEMENTS • The brain produce a response in the case of voluntary movements.
  18. 18. INVOLUNTARY MOVEMENTS • The spinal cord produces a response in the case of involuntary movements
  19. 19. THE SKELETAL AND THE MUSCULAR SYSTEM
  20. 20. THE SKELETON • The skeleton is made of the bones in the body • Head bones: there are two groups, skull bones and facial bones. • Trunk bones: there are two groups , the spine and the rib cage. • Limb bones: there are two groups, upper limb bones and lower limb bones.
  21. 21. JOINTS The joints are located where two or more bones met. There are two types of joints: • Movable joints • Semi-moveable joints • Fixed joints
  22. 22. THE MUSCULATURE It is the set of muscles in the body. Head muscles : masseter, buccinator and orbicular. Trunk muscles : sternoclaidomastoid, abdominal and pectoral Limb muscles :biceps , triceps, deltoid, quadriceps, gluteus and calf muscles

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