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atroni [7]
3 years ago
6

With advancing age, __________ become less responsive to antigens. Additionally, __________ are less responsive, and antibody le

vels do not rise as quickly after antigen exposure.
Biology
1 answer:
diamong [38]3 years ago
7 0

Answer:

1. T cells

2. B cells

Explanation:

With increased age, people become more prone to all infections and produce fewer responses for vaccines. This is due to the lowered levels of function of immune systems against the infections.

With increased age, thymus atrophy and/or hyposecretion of hormones from thymus gland result in reduced activity of T cells against infections. Less number of T cells respond to infections.

The reduced T cell production also makes the B cells less responsive. Reduced responses of B cells towards infection results in slower immune response as antibody levels do not rise quickly.

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macrophage are immune system cells that patrol the blood and body tissues. when a macrophage finds a foreign invader, the macrop
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macrophage are immune system cells that patrol the blood and body tissues. when a macrophage finds a foreign invader, the macrophage ingests (takes in) the foreign invader and then chemically digests (breaks down) that foreign invader. to perform this frequent chemical digestion, macrophage have more than the average body cell is

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2 years ago
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Answer:

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