ALL - A B C D E G H I K L M N O P Q R S T U W
  • Natural killer cells

    White blood cells that contain enzymes that kill virally infected cells and tumor cells. They also communicate with T-cells to help regulate their development and response. [Patient Resource LLC]

  • Nucleus

    Also known as the cell nucleus. The structure in a cell that contains the chromosomes. The nucleus has a membrane around it (nuclear envelope) and is where RNA is made from the DNA in the chromosomes. [NCI]