Immune System

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 3. A lymphocyte derived from bone marrow that provides humoral immunity (plural) (6)
  2. 6. The virus that causes acquired immune deficiency syndrome (3)
  3. 7. An unconscious process that tries to reduce the anxiety associated with instinctive desires (7)
  4. 8. T ___ with CD4 receptor that recognizes antigens on the surface of a virus-infected ___ (plural) (12)
  5. 9. A small apparently simple structure from which new tissue can develop into a complete organism (plural) (5)

Down

  1. 1. T ___ with CD8 receptor that recognizes antigens on the surface of a virus-infected ___ and binds (plural) (12)
  2. 2. A ___ that protects the body from foreign substances and pathogenic organisms by producing (12)
  3. 4. An illness that harms the body (7)
  4. 5. The work of providing treatment for or attending to someone or something (plural) (4)