The hollow region in a long bone that acts as a storage area for bone marrow is known as the:
a. diaphysis
b. osteon
c. medullary canal
d. endosteum
C
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While a 61-year-old female in cardiac arrest receives emergency care you note that her abdomen grows larger with each ventilation provided from a bag-valve mask. What instructions should you provide?
a. "Try delivering each ventilation quickly, and let's slow down the rate." b. "The ventilation rate and the force of ventilation need to be increased so that air reaches the lungs." c. " Let's slow the ventilation rate to 12 per minute and not squeeze in as much air with each breath." d. "I need another rescuer to apply firm pressure over the stomach while we ventilate this patient."
Airway resistance (Raw) is usually defined as:
a. the pressure difference between the ends of the airway divided by the flow rate of gas moving through the airway. b. the sum of the pressures between the ends of the airway divided by the flow rate of gas moving through the airway. c. the pressure difference between the ends of the airway multiplied by the flow rate of gas moving through the airway. d. the sum of the pressures between the ends of the airway multiplied by the flow rate of gas moving through the airway.
The strongest blood vessels—those that can constrict or dilate the most—are
A. arteries. B. arterioles. C. veins. D. venules.
What is a ruptured disk?