The Type of Cell of the Immune System That HIV

question 54

Multiple Choice

The type of cell of the immune system that HIV infects that is important in cell-mediated immunity and in regulating the immune response is which cell?

• A) VDRL
• B) CD4⁺ T-helper lymphocytes
• C) Group A b-hemolytic streptococci
• D) Tzanck cells

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Definitions:

Trichromatic Theory

The idea that three types of cone receptor cells in the retina are responsible for color perception. Each type responds optimally to different, but overlapping, ranges of wavelengths.

L Cones

Photoreceptor cells in the retina that are sensitive to long wavelengths of light, contributing to color vision, particularly red colors.

M Cones

Photoreceptor cells in the retina specialized for medium-wavelength light, contributing to color vision and perception of green hues.

S Cones

A type of photoreceptor in the eye that is sensitive to short wavelength light, contributing to color vision.