7th Grade Science - Body Systems

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Author:
Bookworm48
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296898
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7th Grade Science - Body Systems
Updated:
2015-02-25 20:48:16
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Body Systems
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Body Systems
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  1. The process by which inhaled oxygen is used by the cells to obtain energy, and release carbon dioxide and water.
    respiration
  2. After air enters your nose it goes to
    • 1. trachea
    • 2. bronchial tubes
    • 3. lungs
  3. Organ that is flexible and expands like a balloon and fills with air
    lungs
  4. Tiny sacs in the lungs that help exchange gasses between the air and blood
    aveoli
  5. The incoming air is rich with ____
    oxygen
  6. Blood coming back to the alveoli carries ____ which passes to the lungs and is exhaled
    carbon dioxide
  7. System that transports oxygen-rich blood throughout the body
    circulatory
  8. muscular pump that moves the blood
    heart
  9. a blood vessel that carries blood away from the heart
    artery
  10. a blood vessel that carries blood to the heart
    vein
  11. blood vessels that exchange oxygen and nutrients for carbon dioxide and cellular waste
    capillaries
  12. 4 parts of blood
    • 1. red blood cells
    • 2. white blood cells
    • 3. plasma
    • 4. platlets
  13. protein produced by plasma.  It helps blood clot
    Fibren
  14. Elongated tissues that allow for contractions or relaxations to cause movement
    muscles
  15. All the muscles of the body, especially those involved in movement
    Muscular system
  16. Bones and cartilage that support a vertebrate's body
    Skeletal system
  17. The opening at the end of the digestive system, where wastes are released
    Anus
  18. Saclike structure that stores urine until it can be released.
    bladder
  19. Process that breaks large food molecules into smaller molecules that can be taken in by cells
    Chemical digestion
  20. Process of breaking down food into a form the body can use
    digestions
  21. Organ system that breaks down food into substances the body can use, and absorbs these substances
    Digestive system
  22. A protein in the body that helps control a chemical reaction, such as digestion
    enzymes
  23. Tube that carries food from the mouth to the stomach
    Esophagus
  24. Organ system that removes wastes from the body
    Execratory system
  25. A sac that stores bile
    gall bladder
  26. organ in the urinary system that filters waste from the blood
    kidneys
  27. part of the digestive system where water is absorbed from solid waste
    Large intestines
  28. Organ in the digestive system that produces bile and enzymes, breaks down toxins and wastes
    Liver
  29. Process of breaking food into smaller pieces by chewing and mashing
    mechanical digestions
  30. Tiny filters in the kidney that remove liquid wastes from the blood
    nephron
  31. Organ in the digestive system and endocrine system; makes enzymes that help in the breakdown of carbohydrates, and that help regulate blood sugar levels
    pancrease
  32. Skeletal System - Function
    1.  Provide protection, support and movement

    2.  bones provide mineral storage and makes blood cells
  33. Muscular System - Function
    1.  Allows movement

    2.  works with the skeletal system
  34. Circulatory system - Function
    1.  Transport needed substances

    2.  consists of heart, blood and vessels
  35. Respiratory System - Function
    1.  take oxygen into the body and release CO2

    2.  The lungs are the main organ and gas exchange occurs here
  36. Digestive system - Function
    1.  break down food

    2.  Major Parts - stomach, liver, intestine, rectum, anus
  37. Excretory System - Function
    1.  remove wastes

    2.  kidneys, bladder, skin

    3.  kidneys filter for the blood

    4.  skin rids waste through sweat
  38. Integumentary System - Function
    1.  Protect body from damage, excrete waste, and act as a cushion

    2.  the skin is the largest organ in the body
  39. Nervous System - Function
    1.  control body

    2.  made up of brain and nerves
  40. Endocrine System - Function
    1.  regulates the bodily activity

    2.  hormones are produced in glands
  41. Positive or negative response to a stimuli; example:  pain
    Feedback mechanism
  42. System of nerve cells and tissues that regulates the actions and responses of the body
    Nervous system
  43. Nerve cell, sends messages through the nervous system
    Neuron
  44. An animal's automatic response to a stimulus, such as jerking away from a hot surface
    Reflex
  45. System that covers the human body, basic organ is skin in the human cells
    Integumentary system
  46. Disease causing, non-living particle, reproduces only in living cells
    virus
  47. System of organs that controls body activities through chemical messengers (hormones)
    Endocrine System
  48. A chemical released by a gland; controls a specific body function
    Hormone
  49. Female sex organs in which egg cells are produced
    ovaries
  50. Organ of the digestive system and endocrine system; makes enzymes that help in the breakdown of carbohydrates, and that help regulate blood sugar levels
    pancrease
  51. Male sex cell, produced in the testes
    Sperm
  52. Make reproductive organs that produce sperm
    testes
  53. Organ in a female mammal in which fertilized eggs develop into young.
    uterus
  54. Reproductive System - Function
    1.  give life

    2.  testes, ovaries, uterus

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