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Animal Tissues. Prepared by: Cantoria , Mariflor A. Llabore , Joy Ann Lucilla , Juvy A. Categories of Tissues. Epithelium ( Epithelial ) Connective Muscle Nervous. Epithelium ( Epithelial ). Lines, covers, and protects other tissues and organs. Characterized by:

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Animal tissues

Animal Tissues

Prepared by:

Cantoria, Mariflor A.

Llabore, Joy Ann

Lucilla, Juvy A.


Categories of tissues
Categories of Tissues

  • Epithelium( Epithelial )

  • Connective

  • Muscle

  • Nervous


Epithelium epithelial
Epithelium ( Epithelial )

  • Lines, covers, and protects other tissues and organs.

  • Characterized by:

    • Cells tightly junked together

    • The presence of a cell secretion called the basement membrane.

  • Named by:

    • Cell shape

    • Other characteristics of the cells.

  • Squamous, Cuboidal, and Columnar


  • Epithelial tissue covers external surfaces and internal cavities and organs. Glands are also composed of epithelial tissue.

  • Epithelium forms boundaries. Most substances that move into or out of the body must pass through epithelial tissue.

  • One surface of the tissue is free and the other adheres to a basement membrane.


Epithelial tissue
Epithelial Tissue cavities and organs. Glands are also composed of epithelial tissue.


Squamous epithelium
Squamous Epithelium cavities and organs. Glands are also composed of epithelial tissue.

  • Cells very thin, much wider than they are thick.

    • Simple Squamous Epithelium

      • Air sacs of respiratory

      • Lining of blood vessels, heart and lymphatic tubes

    • Stratified Squamous Epithelium

      • Skin

      • Vagina

      • Esophagus

      • Mouth


Examples of simple squamous epithelium
Examples of Simple Squamous Epithelium cavities and organs. Glands are also composed of epithelial tissue.


Stratified squamous epithelium
Stratified Squamous Epithelium cavities and organs. Glands are also composed of epithelial tissue.


Cuboidal epithelium
Cuboidal Epithelium cavities and organs. Glands are also composed of epithelial tissue.

  • Cells cube shaped- secretion and absorption.

    • Kidney tubules

    • Duct and small glands

    • Surface of ovary


Kidney tubule
Kidney Tubule cavities and organs. Glands are also composed of epithelial tissue.

  • The photograph shows kidney tubules. The cells lining the tubules are epithelial tissue. One surface is attached (the basal surface) and the other surface is free.


Columnar epithelium
Columnar Epithelium cavities and organs. Glands are also composed of epithelial tissue.

  • Elongated cells, much longer than they are wide.

    • Simple Columnar Epithelium

      • A single layer of cells that line the digestive tract, gallbladder and excretory ducts of some glands. Has microvilli at surface for absorption.

    • Pseudostratified ciliated columnar epithelium

      • Lines the bronchi, trachea, uterine tubes and some of the uterus. Propels mucus or reproductive cells by ciliary action.


Eipthelial cells may have cilia
Eipthelial cells may have cavities and organs. Glands are also composed of epithelial tissue.CILIA


Simple columnar epithelium
Simple Columnar epithelium cavities and organs. Glands are also composed of epithelial tissue.


Pseudostratified ciliated columnar epithelium
Pseudostratified Ciliated Columnar Epithelium cavities and organs. Glands are also composed of epithelial tissue.


Connective tissue
Connective Tissue cavities and organs. Glands are also composed of epithelial tissue.

  • Characterized by the cells widely separated from each other in a matrix that is produced by the cells.

  • Tissue protects and supports.

  • Cell Matrix composed of two regions

    • Ground

      • Liquid (sol), Gel, Gum or solid

    • Fibers

      • Non-elastic (= white or Collagen)

      • Elastic (= yellow fibers)

  • Types of Connective tissue


Types of connective tissue
Types of Connective Tissue cavities and organs. Glands are also composed of epithelial tissue.

  • Loose (Areolar) Connective Tissue

  • Dense Connective Tissue

  • Adipose

  • Cartilage

  • Bone

  • Blood


Loose connective tissue areolar
Loose Connective Tissue ( cavities and organs. Glands are also composed of epithelial tissue.Areolar)

  • Gel like ground with both elastic and non-elastic fibers running though the ground in many directions.

    • Wraps and cushions organs

    • Under the skin


Dense regular connective tissue
Dense Regular Connective Tissue cavities and organs. Glands are also composed of epithelial tissue.

  • Nuclei and fibers arranged in parallel rows.

    • Tendons and ligaments

    • Fibers mostly non-elastic


Adipose fat
Adipose (Fat) cavities and organs. Glands are also composed of epithelial tissue.

  • Function as storage cells for adipose (lipids)

  • Adipose cells contain a large vacuole which in the live cell contains lipids.

  • Cell nucleus and cytoplasm are pushed out to edge of cell membrane.


Cartilage
Cartilage cavities and organs. Glands are also composed of epithelial tissue.

  • Ground of matrix is gum like.

  • Cells are found in Lacunae within the matrix.

  • Fibers may be elastic or non-elastic, or a form of non-elastic called reticular(where the non-elastic fibers of very thin)

    • Hyaline Cartilage-example on the ends of bones

    • Elastic Cartilage- example ear cartilage

    • Non-elastic Cartilage- example nose cartilage.


Hyaline cartilage
cavities and organs. Glands are also composed of epithelial tissue.hyaline cartilage


Elastic cartilage
cavities and organs. Glands are also composed of epithelial tissue.elastic cartilage


Bone cavities and organs. Glands are also composed of epithelial tissue.

  • Ground of matrix is Solid (Calcium carbonate).

  • Has blood supply and nerves running through the Haversian canal systems.


Vascular tissue blood
Vascular Tissue (Blood) cavities and organs. Glands are also composed of epithelial tissue.

  • Liquid matrix = plasma

    • 90% water

    • 10%Plasma proteins, electrolytes, hormones, oxygen, glucose etc.

  • Formed elements

    • Erythrocytes-48billion(female) to 54 billion (male) cell / ml of blood in humans. Mammals are enucleated while rest of the vertebrates they have nuclei

    • Leukocytes-about 7.5 million / ml of blood

    • Platelets-blood clotting


Blood
Blood cavities and organs. Glands are also composed of epithelial tissue.


Muscle tissue
Muscle Tissue cavities and organs. Glands are also composed of epithelial tissue.

  • Tissue with cells having fibers specialized for contraction.

    • Skeletal Muscle(Striated, voluntary)

      • Parallel elongated cells (fibers)

      • multinucleated and each cell is the length of the muscle.

      • Light meat, Dark meat—Slow twitch, fast twitch muscle

    • Smooth Muscle(Visceral, involuntary)

      • Cells are long and tapered.

      • Organized into sheets of muscle.

    • Cardiac Muscle

      • Intercalated disc

      • Myogenic

      • branched


Skeletal muscle
Skeletal Muscle cavities and organs. Glands are also composed of epithelial tissue.


Smooth muscle
Smooth Muscle cavities and organs. Glands are also composed of epithelial tissue.


Cardiac muscle
Cardiac Muscle cavities and organs. Glands are also composed of epithelial tissue.


Nervous tissue
Nervous Tissue cavities and organs. Glands are also composed of epithelial tissue.

  • Cells specialized to polarize and depolarize.

  • Cell is a neuron


End of tissue presentation
End of Tissue presentation cavities and organs. Glands are also composed of epithelial tissue.

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