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Tissues By Lauren Smith

Tissues By Lauren Smith






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    Tissues By Lauren Smith Tissues By Lauren Smith Presentation Transcript

    • Tissues
      • Similar cells
      • Work together to make organs
      • 4 types
        • Connective
        • Muscle
        • Epithelial
        • Nervous
      Epithelial Connective Muscle Nervous Credits
    • Epithelial Tissue
      • Covers/lines the body
      • Many functions
      • Made entirely of cells
      • Apical-basal polarity
      • Supported by connective tissue
      • Special contacts
      • Regenerative
      • Classified by the number and shape of cells
      Simple Stratified Psuedostratified Transitional Glandular Home
    • Connective Tissue
      • Most distributed tissue
      • Four classes
      • Originates from mesenchyme
      • Varying degrees of vascularity
      • Nonliving extracellular matrix
      • Ground substance
      • Cells
        • Fibroblasts
        • Chondroblasts
        • Osteoblasts
        • Hematopoietic cells
      • Fibers
        • Collagen
        • Elastic
        • reticular
      • Functions
        • Binding and support
        • Protection
        • Insulation
        • Transportation
      Embryonic Proper Dense Cartilage Bone Blood Home
    • Muscle Tissue
      • Gives body movement
      • High cell count
      • Vascular
      • Three classes
        • Skeletal
        • Cardiac
        • Smooth
      Smooth Cardiac Skeletal Home
    • Nervous Tissue
      • Makes up brain, spinal cord, and nerves
      • Controls body function
      • Neurons = nerve cells
      • Sends electrical impulses through the body
      • Cytoplasmic extensions
    • Simple Epithelial Tissue
      • Thin, single cell layer
      • Functions
        • Absorption
        • Secretion
        • Filtration
      Epithelial Squamos Cuboidal Columnar Home
    • Simple Squamos Epithelium
      • Flattened cells in a single layer
      • Disc-shaped nuclei
      • Sparse cytoplasm
      • Reduces friction
      • Diffuses and filtrates
      • Found in kidney glomeruli, lining of the heart, blood vessels, lymphatic system, and serosae
      Simple Cuboidal Columnar Epithelial Home
    • Simple Cuboidal Epithelium
      • Single layer of cube-like cells
      • Large, spherical, central nuclei
      • Secretes and absorbs
      • Present in secretory portions of smaller glands, kidney tubules, ducts, and ovary surface
      Simple Squamos Columnar Epithelial Home
    • Simple Columnar Epithelium
      • Tall cells in a single layer
      • Oval nuclei
      • Ciliated or non-ciliated
      • Goblet cells
      • Absorbs and secretes
      • Non-ciliated = digestive tract and gall bladder
      • Ciliated = small bronchi, uterus, and uterine tubes
      Simple Squamos Cuboidal Epithelial Home
    • Psuedostratified Columnar Epithelium
      • Single layer of cells of different length
      • Nuclei seen in different layers
      • Secretes and propels mucus
      • Ciliated or non-ciliated
      • In male sperm-carrying ducts and trachea
      Epithelial Home
    • Stratified Epithelium
      • Two or more layers
      • Tougher than simple epithelium
      • Regenerate underneath
      Squamos Cuboidal Columnar Epithelial Home
    • Stratified Squamos Epithelium
      • Several layers
      • Protects areas subject to abrasion
      • Forms outer part of epidermis, lining of esophagus, vagina, and mouth
      Stratified Cuboidal Columnar Epithelial Home
    • Stratified Cuboidal Epithelium
      • Rarely found
      • Two cell layers
      • In some sweat glands and mammary glands
      Stratified Squamos Columnar Epithelial Home
    • Stratified Columnar Epithelium
      • Hard to find in the body
      • Found in the pharynx, male urethra, and lining some glandular ducts
      Stratified Squamos Cuboidal Epithelial Home
    • Transitional Epithelium
      • Many layers
      • Basal cells = cuboidal
      • Surface cells = dome-shaped
      • In the urinary bladder, ureter and part of urethra
      Epithelial Home
    • Glandular Epithelium
      • Gland = one or more cells that make and secrete an aqueous fluid
      • Types
        • Endocrine
        • Exocrine
      • Classified by
        • The number of cells formed
        • Where the product is released
      Endocrine Exocrine Epithelial Home
    • Endocrine Glands
      • Ductless
      • Produces hormones containing amino acids, proteins, glycoproteins, and steroids
      • Spread out in the digestive system and the brain
      Glandular Exocrine Epithelial Home
    • Exocrine Glands
      • Numerous
      • Secretes on surface
      • Can by unicellular or multicellular
      • Many kinds
        • Mucous
        • Sweat
        • Oil
        • Salivary
      Glandular Endocrine Epithelial Home
    • Unicellular Exocrine Gland
      • Goblet cell
      • In intestinal tract and respiratory tract
      • Produces mucin a.k.a. mucus
      Glandular Multicellular Exocrine Endocrine Epithelial Home
    • Multicellular Exocrine Glands
      • Classified by shape
      • Simple or compound duct
      • Structure of secretory glands
      • Secrete by exocytosis (merocine) or by the rupture of gland cells (holocrine)
      Glandular Unicellular Exocrine Endocrine Epithelial Home
    • Embryonic Tissue
      • A.k.a. mesenchyme
      • Ground substance with fibers
      • Star-shaped cells
      • The start of all connective tissue
      • Found in embryo
      Connective Home
    • Connective Tissue Proper
      • Two categories
        • Loose connective tissues
        • Dense connective tissues
      Connective Loose Dense Home
    • Connective Tissue Proper: Loose
      • Divided into:
        • Areolar
        • Adipose
        • Reticular
      Connective Proper Dense Areolar Adipose Reticular Home
    • Areolar Connective Tissue
      • Gel-like matrix w/ all three connective fibers
      • Has fibroblasts, macrophages, mast cells, and white blood cells
      • Protects organs
      • Widely distributed
      Connective Proper Dense Loose Adipose Reticular Home
    • Adipose Connective Tissue
      • Matrix similar to areolar tissue
      • Reserves food stores
      • Insulates against heat loss
      • Supports and protects
      • Fat deposits give nutrients to very active organs
      • Found under skin, around kidneys and in breasts
      Connective Proper Dense Loose Reticular Areolar Home
    • Reticular Connective Tissue
      • Loose, ground tissue w/ reticular fibers in matrix
      • Cells lie in a fiber network
      • Forms a stroma that supports other cells
      • In the lymph nodes, the marrow, and the spleen
      Connective Proper Loose Dense Areolar Adipose Home
    • Connective Tissue Proper: Dense
      • Fibrous connective tissues
      • Three subclasses
        • Dense regular
        • Dense irregular
        • Elastic
      Connective Proper Loose Dense Irregular Regular Home
    • Dense Regular Connective Tissue
      • Collagen and elastic tissue run parallel
      • Cell type = fibroblasts
      • Attaches muscle to bone or to other muscles or bone to bone
      • In tendons and ligaments
      Connective Proper Loose Dense Irregular Home
    • Dense Irregular Connective Tissue
      • Same as dense regular but arranged randomly
      • Fibroblasts
      • Can stand under tension
      • Found in dermis, submucosa of the digestive tract and forms fibrous organ capsules
      Connective Proper Loose Dense Regular Home
    • Cartilage
      • Can stand pressure and tension
      • Avascular
      • No nerve fibers
      • Chondroblasts
      • Types
        • Hyaline
        • Elastic
        • Fibrocartilage
      Connective Hyaline Elastic Fibrocartilage Home
    • Hyaline Cartilage
      • amorphous, glassy firm matrix w/ imperceptible network of collagen fibers
      • Chondrocytes lie in lacunae
      • Supports, reinforces, cushions
      • Forms the costal cartilage
      • Found in the embryonic skeleton, the end of the bones, nose, trachea, larynx, and ribs
      • Most common
      Connective Cartilage Elastic Fibrocartilage Home
    • Elastic Cartilage
      • More elastic fibers than hyaline
      • Maintains structure and shape
      • In the external ear and the epiglottis
      Connective Cartilage Hyaline Fibrocartilage Home
    • Fibrocartilage
      • Matrix similar to hyaline but less firm w/ collagen fibers
      • Can compress
      • Resists tension
      • Found in intervertebral discs, the discs of the knee, and the pubic symphysis
      Connective Cartilage Hyaline Elastic Home
    • Bone a.k.a. Osseous Tissue
      • Hard, calcified matrix w/ collagen fibers
      • Osteocytes found in lacunae
      • Provides base for muscles to move
      • Protects and supports
      • Stores calcium, minerals, fat, marrow
      • Site of hematopoiesis
      Connective Home
    • Blood
      • Plasma matrix with red and white blood cells
      • Contained in blood vessels
      • Transports respiratory gas, nutrients, and waste
      Connective Home
    • Skeletal Muscle Tissue
      • Attach to bones or skin
      • Initiates and controls voluntary movement
      • Long cylindrical cells w/ many nuclei; banded
      Muscle Cardiac Smooth Home
    • Cardiac Muscle Tissue
      • Propels blood into circulation
      • Branched cells interlock at intercalated discs; striated
      • Found only in the walls of the heart
      Muscle Skeletal Smooth Home
    • Smooth Muscle Tissue
      • Has no visible striations
      • Sheets of spindle-shaped cells w/ central nuclei
      • Found in hollow walls of organs
      • Propels substances along internal passageways
      Muscle Cardiac Skeletal Home
      • Slide show by
      • Lauren Smith
      • Narration by
      • Lauren Smith
      • Thanks for the Photos…
      • Danielkenneth (Kleenex)
      • Donna Meyers (Epithelial Tissue)
      • Performance Health Group (Hand)
      • Dr. Schaefer from Washington U. (Fibrous Connective Tissue)
      • And (Reticular Connective Tissue)
      • Suchakar Ken Mcrae from Global Yoga Journeys (muscle)
      • Developmental Online (Simple Epithelial Tissue)
      • Cell Biology Graduates from the University of Texas (Stratified Squamos Epithelium)
      • McGraw-Hill Companies (Stratified Cuboidal Epithelium)
      • Harris from BIODIDAC (Stratified Columnar Epithelium)
      • UNM Valencia (Glandular Epithelium)
      • Department of Anatomy of Wisconsin U. (Endocrine Gland)
      • Pathguy at Kansas City U (Exocrine Gland)
      • The University of Western Australia (Multicellular Exocrine Gland)
      • Wikipedia (Mesenchyme)
      • Raenielyn from coffeblackandcigaretter.wordpress.com (Connective Tissue Proper)
      • And (Connective Tissue Proper Dense)
      • University of Medicine and Dentistry of New Jersey (Connective Tissue Proper Loose)
      • Rest of the photos by
      • Lauren Smith and Cameron Tripp
      • Music (Pink Panther) by Henry Mancini