Drug X Interferes with the Action of Norepinephrine at Synapses

question 2

Multiple Choice

Drug X interferes with the action of norepinephrine at synapses.Which of the following mechanisms would not explain the effects of X?

• A)X inhibits synthesis of norepinephrine at the axon terminal.
• B)X inhibits norepinephrine release from the terminal.
• C)X blocks reuptake of norepinephrine by the terminal.
• D)X is an adrenergic receptor antagonist.
• E)X stimulates the catabolism of norepinephrine.

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Definitions:

Septum Secundum

Second of two major septal structures involved in the partitioning of the atrium, arising later than the septum primum and located to the right of it; it remains an incomplete partition until after birth, with its unclosed area constituting the foramen ovale.

Foramen Rotundum

An opening in the sphenoid bone of the skull through which the maxillary branch of the trigeminal nerve passes.

Neural Tube

The precursor to the central nervous system in vertebrates, developing into the brain and spinal cord.

Ventricles of the Brain

Cerebral cavities filled with cerebrospinal fluid that help protect the brain from injury and provide it nutrients.