In histology, cells are generally categorized based on their shapes:
Squamous cells: Flat and thin, found in areas requiring rapid diffusion like the alveoli of lungs. Cuboidal cells: Cube-shaped, often found in glandular tissues where they participate in secretion and absorption. Columnar cells: Taller than they are wide, these cells are common in the digestive tract and are specialized for absorption and secretion. Stellate cells: Star-shaped, typical of neurons. Spheroid cells: Round, as seen in certain types of white blood cells.
