LUNGS Histology of Bronchi: Primary, secondary, tertiary Epithelium – respiratory epithelium – columnar cells have gradual decrease in height, cilia & goblet cells. Lamina propria – gradual decrease in thickness & increase in number of elastic fibres. Glands – mucous … Read More …

TRACHEA Histology of Trachea Epithelum – respiratory epithelium (pseudo stratified columnar epithelium with goblet cells). Lamina propria – gradual decrease in thickness & increase in number of elastic fibres. Glands – mucous & serous glands. Skeletal connective tissue – C … Read More …

Structure of skeletal muscle. With haemotoxylin and eosin stain, skeletal muscle fibers are seen as highly easinophilic cylinders with multiple peripheral nuclei taking up a basic stain. Each fiber is surrounded by an outer limiting membrane called sarcolemma. The cytoplasm … Read More …

Peripheral Nerve Fibers A peripheral nerve fiber is an axon/Dendron with its covering i.e. myelin sheath and neurilemma. These fibers are myelinated. Each fiber consists of: (i) A central axon/axis cylinder with azoplasm and neurofibrils contained within the axolemma. (ii) … Read More …