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Unit 4a human interactions april

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Unit 4a human interactions april

  1. 1. UNIT 4A Human beings interaction.
  2. 2. INDEX  NEW WORDS.  THE INTERACTION FUNCTION.  THE SENSE ORGANS.  THE NERVOUS SYSTEM COMPONENTS.  THE NERVOUS SYSTEM FUNCTION.  ACTIVITIES AND EXPERIMENTS.
  3. 3. 1. New words. Unit 4(a). Human beings interaction. Sight- vista Hearing- oído Smell- olfato Taste- Gusto Touch- Tacto Nerves- nervios. Stimuli- estímulos Receptors- receptores Effectors- efectores Nervous system- sistema nervioso Brain-cerebro Network-red Neurons- neuronas Balance- equilibrio
  4. 4. SENSE:  STIMULI:  SENSE ORGAN:  RECEPTORS:  NERVE:  INTERPRETER:  PROCESS:  The sound enters through the ……………………………..  Those vibrations are transmitted across the………………… to the ……………….  In the cochlea there are receptors cells which send nerves impulses to the brain along the ………………………….
  5. 5. SENSE: HEARING  STIMULI: SOUND VIBRATIONS  SENSE ORGAN: EAR  RECEPTORS: PINNA AUDITORY CANAL EARDRUM OSSICLES COCHLEA  NERVE: AUDITORY NERVE  INTERPRETER: BRAIN  PROCESS:  The sound enters through the auditory canal.  Those vibrations are transmitted across the eardrum to the cochlea.  In the cochlea there are receptors cells which send nerves impulses to the brain along the auditory nerve.
  6. 6. SIGHT
  7. 7. SENSE:  STIMULI:  SENSE ORGAN:  RECEPTORS:  NERVE:  INTERPRETER:  PROCESS:  Light enters trhough the ……………..  The …………….. focuses the light on the ………………. where it forms an image.  This stimulates the receptor cells in the retina, which produces nerve impulses that they send to the brain through the ……………..
  8. 8. SENSE: SIGHT  STIMUL LIGHT  SENSE ORGAN: EYE  RECEPTORS:  PUPIL  LENS  RETINA  NERVE: OPTIC NERVE  INTERPRETER: BRAIN  PROCESS:  Light enters through the pupil  The lens focuses the light on the retina where it forms an image.  This stimulates the receptor cells in the retina, which produces nerve impulses that they send to the brain through the optic nerve.
  9. 9. SMELL
  10. 10. SENSE:  STIMULI  SENSE ORGAN:  RECEPTORS:  NERVE:  INTERPRETER:  PROCESS:  The ……………………. floating in the air enter the nose.  They go through the …………………………… …...  This pituitary gland sends a nerve inmpulse to the brain along the …………………………… ……..
  11. 11. SENSE: SMELL  STIMULI: SUBSTANCES FLOATING IN THE AIR.  SENSE ORGAN: NASAL CAVITY  RECEPTORS: PITUITARY GLAND  NERVE: OLFATORY NERVE  INTERPRETER: BRAIN  PROCESS:  The substances floating in the air enter the nose.  They go through the pituitary gland.  This pituitary gland sends a nerve inmpulse to the brain along the olfatory nerve.
  12. 12. Pituitary Gland
  13. 13. TASTE
  14. 14. SENSE:  STIMULI:  SENSE ORGAN:  RECEPTORS:  NERVE:  INTERPRETER:  PROCESS:  The ……………………… enter the mouth.  They pass through the …………………………… …..that send nerve impulses to the brain along the ………………nerve.
  15. 15. SENSE: TASTE  STIMULI: SUBSTANCES WHICH ENTER THE MOUTH.  SENSE ORGAN: TONGUE  RECEPTORS: TASTE BUDS  NERVE: TASTE NERVE  INTERPRETER: BRAIN  PROCESS:  The substances enter the mouth.  They pass through the taste buds that send nerve impulses to the brain along the taste nerve.
  16. 16. Taste Buds
  17. 17. TOUCH
  18. 18. SENSE:  STIMULI:  SENSE ORGAN:  RECEPTORS:  NERVE:  INTERPRETER:  PROCESS:  The receptor cells detect …………………………… ……..…  They send impulses to the nervous system through the …………………………… …..  The ………………. interprets the sensations.
  19. 19. SENSE: TOUCH  STIMULI: HOT, COLD, PAIN, PRESSURE  SENSE ORGAN: SKIN  RECEPTORS: DERMIS EPIDERMIS  NERVE: NERVE ENDINGS  INTERPRETER: BRAIN  PROCESS:  The receptor cells detect hot, cold, pain, pressure…  They send impulses to the nervous system through the nerve endings.  The brain interprets the sensations.
  20. 20. THE NERVOUS SYSTEM
  21. 21. THE N.S. COMPONENTS TWO MAIN PARTS Formed of two parts with three parts The central nervous system. The peripheral nervous system. The brain. Protected by the cranium. The spinal cord. Protected by the spinal column or backbone. The cerebrum. The cerebellum. The brain stem. Nerves. Is formed of
  22. 22. The Human nervous system has two parts: ____THE CENTRAL nervous system and __THE PERIPHERAL nervous system. The first has two organs: ___THE BRAIN and __THE SPINAL CORD. The brain is divided into three parts: CEREBRUM, CEREBELLUM AND BRAIN STEM.
  23. 23. THE NERVOUS SYSTEM:  FUNCTIONS.  Receives information from the receptors (senses).  Elaborates a response,  Sends instructions to the effectors (bones and muscles).
  24. 24. THE NERVOUS SYSTEM IS A NETWORK OF CELLS CALLED NEURONS. NEURONS ARE INTERCONNECTED.
  25. 25. THE NERVOUS SYSTEM FUNCTIONS
  26. 26. THE CEREBRUM It controls language, memory and thought. It controls voluntary movements.
  27. 27. THE CEREBELLUM It coordinates movements and keep balance.
  28. 28. THE BRAIN STEM It regulates internal organs.
  29. 29. THE SPINAL CORD It controls involuntary responses called reflexes
  30. 30. THE PERIPHERAL NERVOUS SYSTEM The nerves conect the sense organs to the CNS and the CNS to the effectors
  31. 31. THE EFFECTORS FUNCTION: They execute the responses. UNIT 4B
  32. 32. THE LOCOMOTOR SYSTEM  IS FORMED BY  A)THE MUSCULAR SYSTEM  B) THE SKELETAL SYSTEM
  33. 33. A)THE MUSCULAR SYSTEM IS FORMED BY THE muscles and tendons
  34. 34. THE MUSCLES  The muscles are formed of muscular cells that contract when they receive a nerve impulse. If the nerve impulse stops they return to their initial position.  FIND OUT HOW A MUSCLE MOVES.  For example an arm.
  35. 35. HOW MANY MUSCLES DO WE HAVE?  We have about 650 muscles in my body.  Our muscles make up half of my body weight.  ??? How much do your muscles weigh?
  36. 36. MY MUSCLES ARE IMPORTANT BECAUSE THEY…  Hold my organs in place  Hold my bones together so that I can move  Help me chew my food  Open and close my eyelids  Pump my blood  Allow me to run and play  Help me to smile!
  37. 37. DID YOU KNOW????? It takes more muscles to frown than to smile?
  38. 38. WHAT ARE MUSCLES MADE OF? Stretchy, elastic cells and fibers
  39. 39. WHY DO I NEED TENDONS? Tendons attach my muscles to my bone helping my body move. Feel your tendon right above your heel in the back of your leg. This is the thickest tendon in your body.
  40. 40. ONE WAY TO KEEP MY MUSCLES STRONG… Eat foods from the meat group every day. They are high in protein which helps to build strong muscles. Name some foods that are high in protein.
  41. 41. ANOTHER WAY TO KEEP STRONG MUSCLES…  Exercise every day. What are some things you can do every day to help keep your muscular system healthy?
  42. 42. THE SKELETON
  43. 43. FUNCTIONS  TO BE A FRAME FOR THE BODY,  PROTECT THE INTERNAL ORGANS and  TO HELP THE MOVEMENT OF THE BODY.
  44. 44. THE SKELETON IS MADE UP OF BONES and JOINTS
  45. 45. T H E B O N E S
  46. 46. TYPES OF JOINTS  FIXED: The connected bones can not move. Ex. cranium  MOBILE: The jointed bones can move freely. Thay are connected by ligaments, covered by cartilage and a liquid called synovial fluid. Ex. The knee.  SEMIMOBILE: The connected bones can move a little bit. Ex. vertebrae
  47. 47. INVESTIGATE  1.- How many bones do we have?  2.- What bones do protect your heart and lungs?  3.-Which are the smallest bones in the body?  4.-And the biggest one?  5.- How many pairs of ribs do we have?
  48. 48. GOOD BYE

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