Cellular (cell-mediated) immunity is effective against ________.
A. venoms
B. extracellular viruses
C. allergens
D. cancer cells
E. toxins
Answer: D
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Which of the labeled cells in the diagram is a neuroglial cell that forms and maintains the myelin sheath around CNS axons?
a) A b) B c) C d) D e) F
What disease is characterized by the abnormal hemoglobin S?
A. Emphysema B. Sickle cell anemia C. Thalassemia D. Cystic fibrosis
________ is caused by an insufficient delivery of the neurotransmitter dopamine to neurons in certain basal nuclei within the cerebrum.
A. Multiple sclerosis B. Alzheimer disease C. Parkinson disease D. Shingles
Which of the following disorders involving the organ labeled E can result from viruses, drugs and chemicals such as alcohol?
a) heartburn b) mumps c) pancreatitis d) hepatitis e) vomiting