What are the 9 organ systems?

I need it for an upcoming science test! I'm confused! Please help! Thanks in advance.

12 Answers

  • Anonymous
    1 decade ago
    Best Answer

    Humans have nine major organ systems which make the seven life processes:

    1) The Digestive System

    Digestion breaks down food into simpler substances so it can be used and absorbed into the body

    It takes place in the alimentary canal, (food tube), mainly in the stomach and small intestine

    Digested food is absorbed into the blood system

    2) The Respiratory System

    This is for taking in oxygen and removing waste carbon dioxide

    Air enters the lungs by movement of the rib muscles and diaphragm

    Oxygen is absorbed into the blood system

    3) The Excretory System

    This removes toxic and other waste materials from the body.

    Waste material is filtered out of the blood by the kidneys and made into urine

    This is stored in the bladder and released via the urethra

    4) The Circulatory System

    The heart pumps blood around the body

    It supplies cells with oxygen and food, then carries away the wastes like carbon dioxide

    5) The Reproductive System

    This is for producing offspring

    Eggs are produced by the ovaries in a female

    Sperm are produced by the testes of a male and they then endeavour to fertilise the eggs

    6) The Nervous System

    The five sense organs are: eyes, ears, nose, tongues, skin

    They all contain nerves, which send messages to the brain about what's happening

    The brain produces a response, which it sends via other nerves to the muscles

    7) The Endocrine System

    This system produces and discharges chemicals called hormones

    A number of glands around the body (endocrine system) produce these hormones

    Hormones control activities such as growth or sexual characteristics and also bodily functions like menstruation

    8) The Skeletal System

    There are 206 bones in the human body and their main job is support

    Some bones (e.g. the skull) provide a tough barrier to protect delicate organs like the brain

    Muscles are attached to the bones which contract and relax allowing movement

    9) The Muscle System

    Muscles are attached to bones

    Muscles cause movement when they contract and relax

    Source(s): Medial Assistant and medical assisting book #9
  • 3 years ago

    Organ Systems And Their Functions

  • Alice
    Lv 4
    4 years ago

    For the best answers, search on this site https://shorturl.im/aw1Ki

    Digestive - Tongue, Stomach, Intestines, Esophagus, Colon, Rectum, Gall bladder, pancreas Muscular- Muscles and tendons Skeletal- Bones and Joints Neurological- Brain, Nervous system, Spinal Cord Cardiovascular- Heart and blood Vessels Endocrine- Pituitary, Thyroid glands Urinary- kidneys, bladder Reproduction- Uterus, Male Reproductive Organs Respiratory- Lungs

  • 3 years ago

    What about the integumentary system?

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  • Anonymous
    1 decade ago

    Well there's the digestive, immune, integumentary, nervous, skeletal, muscular, reproductive, endocrine/exocrine, respiratory, and cardiovascular. That's more than 9 but some are sometimes grouped....you should be ok!

  • Anonymous
    3 years ago

    Thats an interesting question I hope you'll find valuable answers

  • 4 years ago

    This Site Might Help You.


    What are the 9 organ systems?

    I need it for an upcoming science test! I'm confused! Please help! Thanks in advance.

    Source(s): 9 organ systems: https://shortly.im/mpDcE
  • 1 decade ago










  • Anonymous
    3 years ago

    It depends on many things

  • 5 years ago

    an argument. that is what happens when you ask a bunch of yahoos.

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