That is what we call the muscular system. This system allows us to move, circulates blood through the body and their is 3 types of muscle. Skeletal muscle is voluntary and are mostly attached to two bones. Smooth muscle is found inside organs such as stomach and blood vessels. And Cardiac muscle is ONLY found in the heart .
Answer:
Cytotoxic T cells
Explanation:
Perforin is the cytosolic protein and upon degranulation forms pores in the target cell. Perforin protein helps in the transport of water and ions.
Perforin is present in the granules of cytotoxic T cells. These cells have the ability to kill virus infected cells and cancer cells. Cytotoxic T cells bind with the class 1 MHC molecules. These cells are also known as CD8+ T cells.
Thus, the correct answer is option (A).