Osteoarthritis involves the entire joint, including the nearby muscles, underlying bone, ligaments, joint lining (synovium), and the joint cover (capsule). 1  Osteoarthritis also involves progressive loss of cartilage.
This allows the daughter and parent cells to have an equal amount of genetic material. The last stage is telophase, and this is where cytokinesis in animals takes place. When an animal cell begins to divide, it is attributed to a structure called a contractile ring. The contractile ring tightens tighter and tighter by a protein called myosin and eventually makes a burrow called a cleavage burrow..
Just as animal function is tied. to cell function, animal structure is dependent on the organization of cells into tissues, Today it is more important than ever for the biologist to understand cell structure and. function. Animal Cells- Light Microscope. Detailed study of cell structure requires the use of the election microscope. Few. details of subcellular structure can be studied under the light microscope.