The continual policing of peripheral tissues by NK cells is referred to as ________.
Fill in the blank(s) with the appropriate word(s).
immunological surveillance
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This figure shows the muscles of facial expression. What muscle does number 7 indicate?
A. Mentalis B. Levator labii superioris C. Risorius D. Sternocleidomastoid E. Depressor labii inferioris
Which of the following is a function of eosinophils?
A. They produce histamine in response to inflammation. B. They produce heparin. C. They destroy body cells infected with viruses. D. They phagocytize antigen-antibody complexes. E. They produce antibodies.
Explain the polar character of an ammonia molecule (NH3). What is the cause of the partial charges? What is the overall charge for NH3?
What will be an ideal response?
An antibacterial enzyme that is present in saliva, tears, and sweat is
A. lysozyme. B. antibodies. C. antigen. D. interferon.