One-way valves that prevent a back flow of blood are seen in
A) veins B) lymphatic channels
C) capillaries D) arteries
A
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In most neurons the resting membrane potential is about:
a. -70 mV b. 0 mV c. +70 mV d. +35 mV
Which of the following behaviors would the EMT recognize as uncharacteristic of a conscious and stable 2-year-old boy who fell and hurt his hand?
A) Cries any time you or your female partner touch him B) Does not cry or protest when taken from his mother C) Becomes upset when you lift his shirt to assess his abdomen D) Apologizes several times for falling and hurting his hand
Water mist systems are widely used
A. True B. False
The hereditary form of sideroblastic anemia is most commonly the result of:
a. Decreased hepcidin synthesis b. Mutation of the HFE gene c. Abnormal ALAS d. Increased absorption of iron