In an adult female, the body consists of about ________ percent water
A) 60
B) 50
C) 40
D) 70
E) 80
Answer: B
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A person has a rare autoimmune disorder in which immune cells attack and destroy thymosins as soon as they are produced and secreted. What affect will this have on the immune system?
A. Macrophages will not differentiate from myeloid stem cells, so cell debris will accumulate and immune function will be impacted. B. T lymphocytes will cease maturation and immune function will be severely impacted. C. The thymus will not develop in a growing infant, so no T lymphocytes will be produced and the person will be immunocompromised. D. B lymphocytes will cease maturation and immune function will be severely impacted.
Which of the following structures belong to the inner ear?
A. Tympanic membrane B. Helix C. Incus D. Semicircular duct E. Tensor tympani muscle
In which part of the small intestine does most of the chemical digestion occur?
a. ileum b. jejunum c. duodenum d. both A and C above
How would the pH of the intestinal contents be affected if the small intestine did not produce secretin?
A) It would be more acidic than normal B) It would be more alkaline than normal C) It would be more basic than normal D) It would be neutralized E) It would not affect pH but it would increase mucous release