types of tissue: connective, muscle, nervous, epithelial. close-up of cells within a tissue. anatomical fiber parts

tissue human connective body cell epithelial skin neuron biology matrix muscle structure nervous anatomy bone muscular infographic histology different fiber skeletal layer diagram illustration education health medicine science healthy cancer care disease infection cellular respiratory anatomical muscles epidermis mucus smooth epithelium structural musculoskeletal type section closeup columnar normal part ai generated