How are the T cells produced by the thymus?
What will be an ideal response?
The T cells are produced by the stimulation of lymphocytic stem cells exposed to a mixture of thymic hormones. These hormones are produced by the epithelial cells of the thymus.
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Slow muscle fibers
A) have less oxygen than do fast fibers. B) are about two-thirds the diameter of fast fibers. C) can continue to contract long after fast fibers have fatigued. D) take twice as long to contract after stimulation as do fast fibers. E) None of the answers are correct.
Immunoglobulin ____, found in tissue fluids and plasma, attacks viruses, bacteria, and toxins
a. A b. D c. G d. E
The majority of T cells of the naive lymphocyte pool wait for the encounter with foreign antigens in the ________.
A. plasma B. thymus C. blood plasma D. lymphatic tissues E. lymph
. Which is the layer of the serous membrane that directly covers the surface of internal organs?
A. Omental layer B. Visceral peritoneum C. Parietal peritoneum D. Rectal peritoneum E. Muscularis mucosa