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Stem cells that will form T cells are modified in the

________ are clusters of lymphatic nodules located beneath the epithelial lining of the small intestine.

The heart beats approximately ________ times each day.

________ are clusters of lymphatic nodules located beneath the epithelial lining of the small intestine.

Lymphocytes that attack foreign cells or body cells infected with viruses are ________ cells.

Hormonal actions on cells include those that affect

TSH plays a key role in the ________ of thyroid hormones.

The following is a list of the stages that occur during a bacterial infection. The proper sequence for these steps is i. Cytotoxic T cells appear. ii. Inflammation, lymphokines, and monokines attract phagocytes. iii. Neutrophils and NK cells migrate into the infected area. iv. B cells differentiate and the number of plasma cells increases. v. A gradual, sustained increase in antibodies occurs.

Lymphocytes that attack foreign cells or body cells infected with viruses are ________ cells.

TSH plays a key role in the ________ of thyroid hormones.