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3.1: Examining epithelial tissue under the microscope
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This page discusses epithelial tissue, which lines surfaces and forms glands, classified by the number of cell layers and shape. It outlines key characteristics such as densely packed cells and minimal extracellular material, and emphasizes the importance of microscope setup for accurate observation.
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3.2: Examining Connective Tissue
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This page discusses connective tissue, its classification into connective tissue proper, supporting connective tissue, and fluid connective tissue, and its key characteristics. Additionally, it describes laboratory exercises where students examine and document various types of connective tissues under a microscope, focusing on accurate depictions and functional details of the tissues observed.
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3.3: Examining Connective Tissue
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This page outlines the characteristics of bone and cartilage, two types of supporting connective tissues. Both contain extracellular protein fibers with distinct ground substances: hyaluronan in cartilage and hydroxyapatite in bone. It highlights the cell types involved—chondrocytes in cartilage and osteocytes, along with three other cell types in bone. Structural features like lacunae, lamellae, and canaliculi are mentioned.
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3.4: Distinguishing Between The Three Types of Muscle Tissue
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This page explains the three types of muscle tissue: skeletal, cardiac, and smooth. Skeletal muscle is multinucleate, striated, and attached to bones. Cardiac muscle, only in the heart, is striated with intercalated discs and usually mononucleate. Smooth muscle, found in internal organ walls, is non-striated with tapered, mononucleate fibers. Visual identification of these muscles relies on distinct microscopic characteristics.
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3.5: Identifying Neurons Within Nervous Tissue
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This page discusses nervous tissue, a primary animal tissue type comprised of neurons and neuroglia. Neurons transmit signals, while neuroglia support them. Key features of neurons include a cell body, dendrites, a single axon, and axon terminals. Due to its fragility, viewing neurons under a microscope can be difficult. A lab exercise is highlighted, focusing on the identification of neurons in prepared slides.
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3.6: Practice in Identifying Different Types of Tissues
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This page details the components of different tissue types, focusing on connective, muscle, neural, and epithelial tissues, along with their specific classifications and exceptions. It also includes storage guidelines for a microscope.