which of the following is a likely explanation for why
the elderly do not respond as well to vaccinations compared to
younger individuals?
a. abnormal antibody production by T cells
b. negative feedback regulation of T cell activity
c. hypertrophy of the thymus
d. decreased production of thymic hormones
Answer: Decreased production of thymic hormones.
( As aging process increases, the production of thymic hormones gets lowered or loss. This is the reason why in elderly people have low hypersensitivity.)
which of the following is a likely explanation for why the elderly do not respond as...
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The Central Nervous System, endocrine system B. Figure 1 Use the diagram above to answer the following question 1) Which letter indicates the primary visual cortex, which receives information from neurons in the retina of the eye? A) A B) B C) C D) D E) E Figure 2 Use the diagram above to answer the following questions....
tive system, which converts raw food materials into products usable by cells Chapter 1 Organization of the Human Body3 enary system, which removes wastes and excess water uctive system, by which new individuals of the species are produced the cellular reactions that sustain life together make up metabolism, which can be d nd anabolism. In catabolism, complex substances are broken down into simpler into catabolism les. When the nutrients from food are broken down by catabolism, energy is re molec...