Place the steps of the adaptive immune response in order.
1. Antibodies are produced.
2. Macrophages present the MCH I molecule and foreign antigen.
3. T lymphocytes are stimulated.
4. B lymphocytes are stimulated.
A) 2, 1, 3, 4 B) 2, 4, 3, 1 C) 2, 3, 4, 1 D) 3, 4, 2, 1
Question 2
Multiple sclerosis is a:
A) demyelinating disease involving only the gray matter of the brain.
B) demyelinating disease involving the white matter of the brain and spinal cord.
C) toxic insult to the brain meninges by ingestion of heroin.
D) muscle-wasting disease involving the muscle surrounding the spinal cord.