Animal Tissue 1

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Animal Tissue 1

Transcript of Animal Tissue 1

  • 1

    2.5 : Cells are grouped into tissues

    (A) Animal

    CELL STRUCTURE & FUNCTION

  • CELL STRUCTURE AND FUNCTIONS

    Prokaryotic and eukaryotic cells

    Microscopic structures of plant and animal

    cell

    Structures & functions:Cell membrane and

    organelles

    Cell transport

    Cells are grouped into tissue

    Animal Plant

    Epithelial Nerve Muscle Connective

    MeristemParenchymaCollenchymaSclerenchyma Xylem Phloem

  • Types&

    Specialized cell

  • From a ball of cells (embryo)

    Nerve cells

    osteocytes Blood cells

    Muscle cells

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  • cell organization

    cell

    tissue

    organ

    system An integrated group of cell with

    a common structure,

    function, or both.

  • Types of tissues

    epithelial

    muscle

    nerve

    connective

    Striated muscle

    Smooth muscle

    Cardiac muscle Bonecartilage blood

    squamous

    cuboidal

    columnar

  • At the end of this lesson, student should be able to:

    Describe the structure, distribution and function of the following cell:

    a) Epithelial

    b) Nerve

  • Simplesttissues.

    It can be built up into tissues of varying complexity.

    Lining tissues : in it simplest form, it consists of a single layer of cells covering the surface of the body and the organs within it.

    A) Epithelial Tissues

  • Also lines various spaces and tubes ( in which situation it is usually referred to as endothelium).

    Firmly attached to each other.

    Rest on basement membrane

    Have free surface

    A) Epithelial Tissues

    basement membrane

  • A) Epithelial Tissues

    MAIN FUNCTION Protection

    OTHER FUNCTIONS

    To increase the surface area for absorptionof material

    Exchange materials by diffusion

    As a gland ; secrete mucus and enzyme

  • TYPES EPITHELIAL

    Cell

    Shape

    SIMPLE

    - single layer of cells

    STRATIFIED

    - multiple layers of cells

    PSEUDO-STRATIFIED

    -single layer but it appears to be stratified because the cells vary in length

    SQUAMOUS

    CUBOIDAL

    COLUMNAR

  • TYPES OF EPITHELIAL TISSUES

    Simple EpithelialTissues

    Stratified EpithelialTissues

    PseudostratifiedEpithelialTissues

    Simple squamousEpithelial tissues

    Simple cuboidalEpithelial tissues

    Simple columnarEpithelial tissues

    Stratified squamousEpithelial tissues

    Stratified columnar

    Epithelial tissues

  • i) Simple Squamous Epithelial tissues

    Cells are flattened

    The sheet of cell is delicate, thin , and leaky

    basement membrane