For the following, match the term with the best description.A. A characteristic of aging arteriesB. Produced by turbulent blood flowC. Blood flow is directly proportional to pressure differences and inversely proportional to resistanceD. As pressure in a vessel decreases, the force holding it open decreases, and the vessel tends to collapseE. A characteristic of the venous systemVascular compliance
Fill in the blank(s) with the appropriate word(s).
Answer: E
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Classes of lymphocytes in the body include
A) NK (= natural killer) cells. B) T cells. C) B cells. D) All of the answers are correct. E) None of the answers are correct.
Which statement is correct?
a. Respiratory rate and depth decrease as a compensatory measure to combat metabolic acidosis. b. The respiratory system can compensate completely for uremic acidosis. c. Metabolic alkalosis inhibits (depresses) the respiratory center. d. The respiratory responses to acid-base imbalances represent the first line of defense against changes in pH of the body fluids. e. The respiratory system responds to changes in [H+] only if the kidneys are unable to cope with the change.
Which component of the diencephalon is stimulated by changes in body temperature?
A) choroid plexus of the epithalamus B) pineal gland C) ventral nuclei of the thalamus D) preoptic area of the hypothalamus E) paraventricular nucleus of the hypothalamus
Which of the following is NOT true of glial cells?
A. They deliver fuel molecules to neurons and remove the waste products of metabolism. B. They are outnumbered 10 to 1 by neurons in the nervous system. C. They are important for the growth and development of the nervous system. D. They regulate the composition of the extracellular fluid in the CNS. E. They form the myelin for axons.