ANIMAL ORGANIZATION

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ANIMAL ORGANIZATION

• CELL TISSUE ORGAN SYSTEM- ORGANISM

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TYPES OF TISSUES

• EPITHELIAL
• MUSCLE
• NERVOUS
• CONNECTIVE

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EPITHELIAL TISSUE

• COVER
• PROTECT
• LINE

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EPITHELIAL TISSUE

• CAN BE
• SIMPLE 1 LAYER
• STRATIFIED LAYERS
• PSEUDOSTRATIFIED APPEARS TO HAVE LAYERS BUT
  ACTUALLY ALL CELLS TOUCH BASELINE

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EPITHELIAL TISSUE

• SQUAMOUS
• THIN, FLAT, CENTRAL NUCLEUS
• LINES
• EXAMPLE INSIDE HEART AND BLOOD VESSELS, INSIDE
  MOUTH

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EPITHELIAL TISSUE

• CUBOIDAL
• CUBE SHAPED, CENTRAL NUCLEUS
• PROTECTIVE AND SECRETORY
• EXAMPLE GLANDS, DUCTS OF GLANDS

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EPITHELIAL TISSUE

• COLUMNAR
• SINGLE LAYER, TALL, CYLINDRICAL, NUCLEUS NEAR
  BASE
• LINES, PROTECTS, SECRETES, ABSORBS
• EXAMPLE DIGESTIVE TRACT

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EPITHELIAL TISSUE

• PSEUDOSTRATIFIED
• APPEARS TO HAVE LAYERS, EACH CELL TOUCHES
  BASEMENT MEMBRANE, OFTEN HAS CILIA
• LINE, PROTECT
• EXAMPLE LINING OF RESPIRATORY SYSTEM

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MUSCLE TISSUE

• COMPOSED OF MUSCLE FIBERS
• CONTAIN ACTIN AND MYOSIN WHICH ARE CONTRACTILE
  PROTEINS
• ACCOUNTS FOR MUSCLE CONTRACTION
• FOUND IN SKELETAL, CARDIAC, AND SMOOTH MUSCLES

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SKELETAL MUSCLE

• ATTACHED TO BONES
• VOLUNTARY
• STRIATED WITH BANDS
• MULTI-NUCLEATED

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CARDIAC MUSCLE

• FOUND ONLY IN HEART
• INVOLUNTARY
• STRIATED
• BOUND TOGETHER

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SMOOTH MUSCLE

• WALLS OF INTERNAL ORGANS
• INVOLUNTARY
• NONSTRIATED
• SPINDLE SHAPED CELLS

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NERVOUS TISSUE

• TRANSMITS IMPULSES
• FOUND IN BRAIN, SPINAL CORD, AND NERVES
• COMPOSED OF NEURONS
• NEURONS HAVE DENDRITES, A CELL BODY, AND AN AXON

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CONNECTIVE TISSUE

• JOINTS BODY PARTS TOGETHER
• CONSISTS OF BONE, CARTILAGE, ADIPOSE, BLOOD