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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Cell and Tissue ||
• Cell and Tissue
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Protein packaging• Secretory vesicles• Secreted to E C F
Golgi Apparatus
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Golgi Apparatus
Figure 3-11: The Golgi apparatusFor more Visit www.dentaltutor.in
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Lysosomes• Enzymes• Intracellular
digestion• Peroxisomes
• Hydrogen peroxide
• Detoxification• Fatty acid
degradation
Cytoplasmic Vesicles
Figure 3-12: Lysosomes and peroxisomesFor more Visit www.dentaltutor.in
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Nuclear envelope• Nuclear pore complex• Chromatin
• DNA form genes• Nucleoli
• DNA concentrations• Control RNA synthesis
Nucleus
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Nucleus
Figure 3-13: The nucleusFor more Visit www.dentaltutor.in
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Tissue defined:• Matrix• Tissue types
• Epithelial• Connective • Muscle• Nervous
Primary Tissue Types
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Cell to cell• Gap junction• Tight junction• Anchoring
junction• Cell to matrix
• Focal adhesions• Hemidesmosomes
Junctions
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Junctions
Figure 3-14: Types of cell junctions For more Visit www.dentaltutor.in
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Key Junction Proteins: Connexin, cadherins, occludin & integrins
Figure 3-15: A map of cell junctions For more Visit www.dentaltutor.in
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Defined:• Types:
• Exchange• Transport• Ciliated• Protective
Epithelial Tissues
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Epithelial Tissues
Figure 3-17: Distribution of epithelia in the bodyFor more Visit www.dentaltutor.in
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Leaky junctions• Rapid transport
• Oxygen• Carbon dioxide• Ions & fluids
• Capillaries• Lung alveoli
Exchange Epithelial Tissues
Figure 3-18a: Movement of substances across tight and leaky epitheliaFor more Visit www.dentaltutor.in
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Transport epithelium• Intestinal
microvili• Tight junctions
• Ciliated epithelium• Trachea• Sweep mucous
out• Protective
epithelium• Skin• Multiple cell
layers• Prevent exchange
More Epithelia
Figure 3-18b: Movement of substances across tight and leaky epithelia
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Ciliated epithelium• Trachea• Sweep mucous
out• Protective
epithelium• Skin• Multiple cell
layers• Prevent
exchange
More Epithelia
Figure 3-19a: Ciliated epitheliaFor more Visit www.dentaltutor.in
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Exocrine tissues• Mucous glands- goblet cells• Sweat glands• Secreted externally
• Endocrine tissues• Hormones• Secreted to ECF & blood
Secretory Epithelia
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Secretory Epithelia
Figure 3-20: Goblet cells For more Visit www.dentaltutor.in
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Secretory Epithelia
Figure 3-21: Development of endocrine and exocrine glands from epithelium
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