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    Handout # 6 Cells, Tissues, Organs

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    Ram August
    1. Cells are the basic unit of structure and function in the body. Tissues are groups of cells with similar structures and functions, and organs are composed of two or more tissue types that work together to perform a specific function. 2. The human body contains 11 organ systems that work cooperatively to keep the body functioning properly. Each system is made up of various organs that carry out important tasks like transport, defense, and waste removal. 3. The organ systems and their main functions are the integumentary (skin and its derivatives), skeletal (bones and cartilage), muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and reproductive systems. Together these systems

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    Handout # 6 Cells, Tissues, Organs

    Uploaded by

    Ram August
    41 views5 pages
    1. Cells are the basic unit of structure and function in the body. Tissues are groups of cells with similar structures and functions, and organs are composed of two or more tissue types that work together to perform a specific function. 2. The human body contains 11 organ systems that work cooperatively to keep the body functioning properly. Each system is made up of various organs that carry out important tasks like transport, defense, and waste removal. 3. The organ systems and their main functions are the integumentary (skin and its derivatives), skeletal (bones and cartilage), muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and reproductive systems. Together these systems

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    1. Cells are the basic unit of structure and function in the body. Tissues are groups of cells with similar structures and functions, and organs are composed of two or more tissue types that work together to perform a specific function. 2. The human body contains 11 organ systems that work cooperatively to keep the body functioning properly. Each system is made up of various organs that carry out important tasks like transport, defense, and waste removal. 3. The organ systems and their main functions are the integumentary (skin and its derivatives), skeletal (bones and cartilage), muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and reproductive systems. Together these systems

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    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    41 views5 pages

    Handout # 6 Cells, Tissues, Organs

    Uploaded by

    Ram August
    1. Cells are the basic unit of structure and function in the body. Tissues are groups of cells with similar structures and functions, and organs are composed of two or more tissue types that work together to perform a specific function. 2. The human body contains 11 organ systems that work cooperatively to keep the body functioning properly. Each system is made up of various organs that carry out important tasks like transport, defense, and waste removal. 3. The organ systems and their main functions are the integumentary (skin and its derivatives), skeletal (bones and cartilage), muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and reproductive systems. Together these systems

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    © All Rights Reserved
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    Download as docx, pdf, or txt
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    Handout # 6

    Cells, Tissues, Organs

    CELL

    1
    TISSUES

    2
    3
    ORGANS

    Organ Level
    - is a structure composed of 2 or more tissue types
    - performs a specific function for the body
    Organ system / System Level
    - is a group of organs that cooperate to accomplish a
    common purpose or to carry out one or more general processes
    Organismal Level
    - organism – highest level of structural organization

    Organ System Overview

    System Organs Functions


    1 Integumetary Skin and  is the external
    integumentary covering of the body
    derivatives  waterproofs the body
    (hair, nails and  cushions / protects
    glands) deeper tissues from injury
     excretes salts/urea in
    perspiration
     helps regulate body
    temp
     has receptors for pain,
    temp, pressure  alerts us as to what is happening at
    the body surface
    2 Skeletal Bones,  supports the body
    cartilage,  provides framework
    ligaments and that skeletal m. can use to cause movement
    joints  has protective funct
    (eg; skull)
     blood formation
    (hematopoiesis) occurs in the cavities of bone
     the hard substance of
    bone acts as storage for minerals
    3 Muscular Muscles  have only one
    function…to contract and results in movement
     skeletal m. form the
    muscular system
    4 Nervous Brain, spinal  is the body’s fast–
    cord, nerves acting control system
    and sensory  sensory receptors
    receptors detect changes in and outside the body  sends
    messages via electrical signals called nerve impulses to
    the CNS
    5 Endocrine Endocrine  controls body
    glands activities, but it acts much more slowly
     endocrine glands
    produce chem molecules called hormones and release
    them into the blood to travel to target organs
    6 Cardiovascular Heart, blood  the primary organs are
    vessels and the heart / blood vessels
    blood  blood transports
    O2,nutrients,hormones,etc to and from tissue cells
     white blood cells /
    chem. in the blood – protect the body from foreign
    invaders like bacteria toxins, tumor cells
    7 Lymphatics Lymph vessels  complementary to that
    and lymph of the CVS
    nodes  it returns fluid leaked
    from the blood vessel back to the blood
     nodes help cleanse
    the blood. It also contains the cells involved in immunity

    4
    8 Respiratory Nasal  keep the body
    passages, constantly supplied with oxygen and to remove carbon
    pharynx, larynx, dioxied
    trachea, bronchi
    and lungs
    9 Digestive Oral cavity,  is basically a tube
    esophagus, running through the body from mouth to anus
    stmach,
    intestines and
    rectum
    1 Urinary Kidneys,  often called the
    0 ureters, bladder excretory system
    and urethra  removes N2-containing
    wastes like urea and uric acid. These are derived from
    the breakdown of protein and nucleic acids from cells
     maintains water and
    salt balance of body
     regulate acid-base
    balance of the blood
    1 Reproductive Gonads,  exists primarily to
    1 genitals of produce offspring
    males and  sperms are produced
    females by the testes
     other male
    reprod.system structures are:
    - scrotum
    - accesso
    ry glands
    - penis
    - duct
    system (which carries sperm to the outside of the
    body)
     The ovary of the
    female produces eggs
     The female duct
    system consists of
    - uterine
    tubes
    - uterus
    - vagina

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