Which of the following occurs first?
A) An action potential arrives at the axon terminal.
B) Extracellular calcium enters the axon terminal.
C) Synaptic vesicles exit by exocytosis.
D) Voltage-gated calcium channels are opened
Answer: A) An action potential arrives at the axon terminal.
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Which of the male accessory glands encircles the urethra?
A. Bulbourethral gland B. Seminal vesicle C. Prostate gland D. Urethral gland E. Cowper's gland
A patient is being started on a Selective Serotonin Reuptake Inhibitor (SSRI) what are some key concepts with this class of medications?
a. Avoid abrupt discontinuation b. Start Low, Go Slow c. Take 4 - 6 weeks to see benefit d. All of the above e. None of the above
The ________ artery supplies blood to the face
A) facial B) vertebral C) common carotid D) external carotid E) internal carotid
Match the following:
A) Norepinephrine B) Endorphins C) Substance P D) Histamine E) Glycine 1) Increases acid secretion in the stomach; blocked by cimetidine. 2) "Feel-good" neurotransmitter. 3) Mediates pain. 4) Principal inhibitory neurotransmitter of the spinal cord. 5) Natural opiates that inhibit pain; effect mimicked by morphine.