Helper T-lymphocytes are also known as
A. memory T-lymphocytes.
B. CD8+ cells.
C. T8 cells.
D. cytotoxic T-lymphocytes.
E. CD4+ cells.
Answer: E
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A. Tinea corporis B. Tinea unguium C. Tinea cruris D. Tinea pedis
The male and female reproductive systems begin as an indifferent stage. If testosterone is present, which of the following occurs?
A. The paramesonephric duct forms the vagina. B. The mesonephric ducts form the ductus deferens. C. The mesonephric ducts atrophy. D. The paramesonephric ducts enlarge to form the scrotum. E. The paramesonephric duct atrophies.
An image produced by passing visible light through a specimen is obtained using the
A. light microscope. B. scanning electron microscope. C. transmission electron microscope. D. dissecting scope.
Which of the following is a plane (gliding) joint?
A. Humeroscapular joint B. Atlanto-occipital joint C. Intercarpal joint D. Talocrural joint E. Sternoclavicular joint