Which of the following is NOT one of the immune system's components?
A. Barriers
B. NSAIDs
C. Inflammation
D. Chemicals
Answer: B
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The falling phase of the action potential is due to
a. calcium equilibrium. b. potassium efflux. c. potassium influx. d. sodium efflux. e. sodium influx.
Which person most likely has the largest thymus gland?
(a) a third trimester fetus (b) a two-year-old (c) a 12-year-old (d) a 25-year-old
Which statement is true about an agonist?
a. It opposes the function of the prime mover. b. It is the primary muscle that produces a movement. c. It functions primarily to stabilize a joint. d. Its muscle fibers are always circular in structure.
Which of the following hormones causes an increase in metabolism throughout the body?
A) Thyrotropin-releasing hormone (TRH) B) Thyroid-stimulating hormone (TSH) C) Tetraiodothyronine D) Triiodothyronine