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..
Due to the lack of the cell wall, the shape and size of the animal cells are mostly irregular. The constituents of animal cells are structures like centrioles, cilia and flagella and lysosomes. Parts of the animal cell are as follows: Cell membrane-forms the outer covering of the cell, and is semi-permeable.Cytoplasm-is a gel-like matrix where all the other cell organelles are suspended inside the cell.ue to the lack of the cell wall, the shape and size of the animal cells are mostly irregular. The constituents of animal cells are structures like centrioles, cilia and flagella and lysosomes. Parts of the animal cell are as follows: Cell membrane-forms the outer covering of the cell, and is semi-permeable.