GENERAL HISTOLOGY

Detailed explanation-1: -Flagella (singular = flagellum) are long, hair-like structures that extend from the plasma membrane and are used to move an entire cell, (for example, sperm, Euglena). When present, the cell has just one flagellum or a few flagella.

Detailed explanation-2: -Flagella (singular, flagellum) are long, hair-like structures that extend from the cell surface and are used to move an entire cell, such as a sperm. If a cell has any flagella, it usually has one or just a few.

Detailed explanation-3: -The cytoskeleton provides a structural framework for the cell, serving as a scaffold that determines cell shape and the general organization of the cytoplasm. In addition to playing this structural role, the cytoskeleton is responsible for cell movements.

Detailed explanation-4: -Cilia and flagella (terms referring essentially to the same cell organelles) are thread-like cell extensions. Flagella possess motile and sensory functions and are widely distributed among eukaryotes [1]. The motility of flagella serves in cell locomotion and fluid transport above epithelia.

Detailed explanation-5: -Microtubules are also the structural elements of flagella, cilia, and centrioles (the latter are the two perpendicular bodies of the centrosome). In fact, in animal cells, the centrosome is the microtubule-organizing center.