Which of the following is NOT a function of the cerebrospinal fluid?
A. It transports nutrients and wastes.
B. It provides the brain with buoyancy.
C. It transports neurotransmitters.
D. It transports ions.
Answer: C
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Anterior pituitary acidophil cells secrete:
a. Cortisol b. Growth hormone c. Insulin d. Luteinizing hormone e. Vasopressin
The reproductive system is the only system that is NOT essential to which aspect of life?
a. the life of the individual (although its activities do affect other systems) b. maintaining homeostasis c. the continuance of the species from one generation to another d. none of the above
________ participate in both innate immunity and the immune response.
A. Natural killer (NK) cells B. Helper T cells C. Cytotoxic T cells D. B cells E. Memory T cells
Which of the following statements regarding the chemical mediators of inflammatory responses is NOT true?
A. They may be secreted by cells residing in the area of injury. B. They may be secreted by cells that enter the affected area. C. They may be generated by enzymatic cleavage of proteins in plasma. D. They are all peptides. E. They may be chemotaxins.