What is the purpose of valves in the circulatory system?

A) Control the volume of blood moved in each pulse
B) Prevent the backflow of blood in the vessels
C) Support the bifurcation of the veins
D) Allows for expansion and contraction of the veins


Answer: B

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A synapse is:

a. A connection between a neuron and another cell b. A pathway connecting brain regions c. An ion channel in a nerve cell membrane

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You have arrived on the scene of a motor vehicle collision. A car has gone off the road and into a utility pole. The pole is broken and wires are hanging just above the car. You do not see any sparking or arcing of the wires. The driver of the car is slumped over the steering wheel and not moving. Several bystanders around the car are yelling for you to help. Which steps represent the correct order of your response?

A) Clear the bystanders, allow the fire department to secure the wires, access the patient, extricate the patient, transport B) Access the patient, clear the bystanders, allow the fire department to secure the wires, extricate the patient, transport C) Clear the bystanders, access the patient, extricate the patient, transport, allow the fire department to secure the wires D) Access the patient, allow the fire department to secure the wires, clear the bystanders, extricate the patient, transport

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The physician orders 1500 milliliters D10W to infuse over 8 hours. Infuse at ________ milliliters per hour

Fill in the blank(s) with the appropriate word(s).

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There are no health consequences associated with being underweight

Indicate whether the statement is true or false

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