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Control and Coordination

Control and Coordination. nervous system endocrine system. Nervous System. central nervous system peripheral nervous system. Central Nervous System. brain spinal cord. Peripheral Nervous System. sense organs eyes, ears, nose, tongue nerves. neuron . a cell that transfers an impulse.

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Control and Coordination

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  1. Control and Coordination • nervous system • endocrine system

  2. Nervous System • central nervous system • peripheral nervous system

  3. Central Nervous System • brain • spinal cord

  4. Peripheral Nervous System • sense organs • eyes, ears, nose, tongue • nerves

  5. neuron a cell that transfers an impulse

  6. cell body dendrites

  7. Dendrites • filled with cytoplasm • carry impulses toward the cell body dendrites

  8. cell body dendrites axon

  9. Axons • take information away from the cell axon

  10. neurotransmitter neurotransmitter neurotransmitter nerve send a message

  11. Neurons • have dendrites and axons • communicate through an electrochemical process • contain some specialized structures and chemicals

  12. reflex arc

  13. sensory neuron sends information from sensory receptors toward the central nervous system

  14. interneuron transmits impulses between the sensory neuron and motor neuron

  15. motor neuron sends information AWAY from the central nervous system to muscles or glands

  16. Divisions of the Brain • cerebrum • cerebellum • brain stem

  17. cerebral cortex cerebrum

  18. Frontal Lobes • consciousness • primary body movements • self-awareness • reasoning • personality

  19. Parietal Lobes • general sensation

  20. Temporal Lobes • impulses from the ear

  21. Occipital Lobes • impulses from the eye

  22. Cerebellum • 1/8 the size of the cerebrum • maintains equilibrium • coordinates muscular activities cerebellum

  23. Brain Stem • regulates hunger, thirst, and sleep • regulates the vital activities of the body brain stem

  24. Central Nervous System • brain • spinal cord

  25. Diseases and Disorders • cerebral palsy • epilepsy • meningitis • headache

  26. Diseases and Disorders • coma • shock • multiple sclerosis

  27. Senses • pain • temperature • balance • pressure • movement • sight • smell • touch • taste • hearing

  28. Sight • eyes • sensory neurons that respond to light

  29. Smell • nose • responds to odors

  30. Taste • tongue • responds to sweet, sour, bitter, salty, and umami

  31. taste bud

  32. Touch • skin • receptors in skin

  33. Hearing • ear • responds to sound

  34. cornea

  35. cornea sclera sclera

  36. cornea iris sclera

  37. cornea iris pupil sclera

  38. cornea iris pupil sclera aqueous humor

  39. lens cornea iris pupil sclera aqueous humor

  40. choroid lens cornea iris pupil sclera aqueous humor

  41. choroid lens vitreous humor cornea iris pupil sclera aqueous humor

  42. Retinal Tissue • cone cells • responsible for color vision • rod cells • responsible for dim light conditions

  43. choroid lens vitreous humor cornea iris pupil optic nerve sclera aqueous humor

  44. iris optic nerve brain tear layer lens cornea retina vitreous humor pupil

  45. Regions of the Ear • outer ear • middle ear • inner ear

  46. ear canal

  47. middle ear ear canal

  48. connects the middle ear to the pharynx middle ear ear canal eustachian tube

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