Medications that are used to treat arrhythmias may use which of the following mechanisms?
A. Block fast Na+ channels.
B. Block slow Ca2+ channels.
C. Block ?-adrenergic receptors.
D. All of the choices are correct.
Answer: D
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Clusters of gray matter that contain neuron cell bodies and lie within masses of white matter are the
A. cortex. B. cerebral ganglia. C. cerebral nuclei. D. cerebral peduncles. E. ventricles.
The most prevalent antibody in blood and lymph is
A. IgG. B. IgD. C. IgE. D. IgC. E. IgA.
The majority of neurons are classified as which of the following?
A. Motor neurons B. Unipolar C. Bipolar D. Multipolar E. Anaxonic
Match the vitamin with its function in the body.A. Required for the synthesis of clotting factors (prothrombin)B. Is a component of the coenzyme FADC. Promotes calcium and phosphorus useD. Involved in amino acid metabolismE. Primary constituent of coenzyme APantothenic acid
Fill in the blank(s) with the appropriate word(s).