Which of the following is a function of the thymus gland?
a. Production of red blood cells.
b. Secretion of antibodies.
c. Production and maintenance of stem cells.
d. site for the maturation of T lymphocytes
For questions 19-23, match the lymphatic organs in the key to the description of its location. Key:
a. Lymph nodes
b. Payer's patches
c. Spleen
d. Thymus gland
e. Tonsils.