The thymus is most active during a. Fetal development b. Childhood c. Middle age d. Old age

Which mothers need to be concerned about erythroblastosis fetalis?a. Rh 1 mothers having Rh 2 babies.b. All mothers regardless of blood type.c. Rh 2 mothers having Rh 1 babies.d. Rh 2 mothers having Rh 2 babies.e. Rh 1 mothers having Rh 1 babies.

Which structure is influenced by the LH surge? Select one: a. 5, which is the ovum b. 2, which is the corpus luteum c. 3, which is the ovum d. 3, which is the corpus luteum

During which stage of life is the thymus most active? A. Pregnancy B. Adolescence . C. Infancy O D. Reproduction

Which of the following patients would best be treated by a rheumatologist? A    Sophie has Sjogren's syndrome, a disease in which the immune system attacks the moisture-producing cells in her body. B    Last week, Sergei had a severe allergic reaction to a bee sting. C    Renada just learned she contracted HIV from a blood transfusion. D    Alejandro wants a second opinion of his treatment options after he was diagnosed with lymphoma.

The heart works like an efficient pump.         A. True   B. False

One of the postoperative complications from the removal of lymph nodes during a mastectomy would be a. edema in the upper limb. b. regrowth of the lymph nodes. c. an overactive immune system. d. tender and swollen lymph nodes in other regions of the body

Compare and contrast the blood–brain barrier to the blood–testis barrier. Discuss with the students the clinical applications of these barriers.

B cells are responsible for which conditions?a. asthma b. anaphylaxis c. tuberculin reactions d. both a and b

Explain why each choice (a-d) is correct or incorrect The blood testis barrier is to newly formed sperm cells as the blood thymus barrier is to  a.T lymphocyte precursors b. Mast cells c. Plasma cells  d. White pulp