Where are the central centers responsible for regulating the cardiovascular system located?
a. Aortic bodies
b. Brainstem
c. Carotid arteries
d. Cerebral hemispheres
ANS: B
Central control of cardiovascular function occurs via interaction between the brainstem and se-lected peripheral receptors.
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Distinguishing between a knee dislocation and a patella dislocation can sometimes be difficult. Which of the following statements is NOT true?
A) In a knee dislocation, the tibia is forced anteriorly or posteriorly in relation to the distal femur. B) The lack of a distal pulse could be a signal of a real emergency. C) In a patellar dislocation, the knee will be stuck in flexion but the knee cap will not be displaced. D) You should always check for a distal pulse.
Which of the following determines the extent that structural members of a building are weakened?
A. Intensity of the fire B. Amount of water used C. Extinguishing agents used D. Amount of time fire burned
Health-care professionals should double-check medications against which of the following?
A) Superbill B) Invoice C) Family history D) Medication administration record (MAR)
What are urokinase and streptokinase used for in vascular pathology?
a. lysis of embolus b. vasoconstriction c. vasodilation d. hemostasis