MICROANATOMY

Detailed explanation-1: -So, the correct answer is ‘Endoplasmic reticulum. ‘

Detailed explanation-2: -Explanation: Microfilaments are the smallest of the three cytoskeletal elements and are made up of actin filaments (myosin is not found in microfilaments).

Detailed explanation-3: -A centriole is a cylinder of nine triplets of microtubules, held together by supporting proteins. Centrioles are best known for their role in centrosomes, structures that act as microtubule organizing centers in animal cells.

Detailed explanation-4: -Microfilaments are found in almost every cell, and are numerous in muscle cells and in cells that move by changing shape, such as phagocytes (white blood cells that search the body for ba cteria and other invaders).