Introduction -- The Nucleus.-  The Cytoplasm: The Secretory System -- The Cytoplasm: The Endocytic System -- The Cytoplasm: Lysosomes and Lysosomal Disorders -- The Cytoplasm: Autophagy -- The Cytoplasm: Mitochondria and Structural Abnormalities -- The Cytoplasm: Peroxisomes and Peroxisomal Diseases -- The Cytoplasm: Paraplasmic Inclusions -- The Cytoplasm: Cytoskeleton -- The Plasma Membrane and Cell Surface Specializations -- Membrane Contact Sites -- Cell-Cell and Cell-Matrix Contacts and Disorders -- Secretory Epithelia -- Resorptive Epithelia -- Sensory Epithelia --  Stratified Epithelia -- Epithelium of the Respiratory Tract -- Urothelium -- Endothelia -- Glomerulus and Disorders -- Connective Tissue -- Adipose Tissue -- Cartilage -- Bone -- Skeletal Muscle and Dystrophies and Myopathy -- Cardiac Muscle -- Smooth Muscle -- Nerve Tissue and Disorders -- Peripheral Blood.